Used Vehicles in Chattanooga TN

This 2016 Dodge Dart SE is offered to you for sale by Auto Simple. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. This wonderfully fuel-efficient vehicle offers a supple ride, quick acceleration and superior styling without sacrificing MPGs. Tires can be an expensive maintenance item. Luckily, this vehicle's tires are newly installed, so you've got miles and miles to go before you need to replace them. This Dodge Dart is beautiful and the interior is clean with virtually no flaws. This Dodge Dart SE has high-end wheels to enhance your ride and the overall appearance of this vehicle. More information about the 2016 Dodge Dart: The 2016 Dodge Dart is a compact car competing with the likes of the Ford Focus, Toyota Corolla, Hyundai Elantra and Honda Civic. Dart models start at just under $17,000 for the SE and top out at about $24,000 for the Limited. Buyers get world-class styling and lots of customization options with the Dart, including three available engines and transmissions. Styling is customizable too, with Dodge offering a "Rallye" version that significantly changes the look of the vehicle. Strengths of this model include efficient, Sporty, powerful and economical, and a model to suit every need

Auto Simple is excited to offer this 2016 Volkswagen Jetta Sedan. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. You could spend more on fuel each month than on your vehicle payments, so why not consider one with exceptional fuel economy like this 2016 Volkswagen Jetta Sedan. Tired of replacing tires? You're in luck. This vehicle just had them replaced for you. Clean interior? How about flawless. This Volkswagen Jetta Sedan looks like has never been used. Amazing wheels help set this Volkswagen Jetta Sedan apart from other vehicles like it. More information about the 2016 Volkswagen Jetta Sedan: The 2016 Jetta competes with the Honda Civic, Mazda3 and Toyota Corolla. Previously, price kept it just out of reach of potential buyers of the competition, but Volkswagen has worked to give buyers the best of all worlds, carefully packaging features and tweaking the Jetta's price level. Volkswagen wants buyers to feel they can get a premium German sedan or wagon at a friendly price, with fit and finish similar to that on cars that cost two and three times as much. Interesting features of this model are good handling and braking, terrific trunk space, excellent fit and finish, fuel economy on Hybrid models, and Affordability

Auto Simple has a wide selection of exceptional pre-owned vehicles to choose from, including this 2015 Volkswagen Jetta Sedan. Drive home in your new pre-owned vehicle with the knowledge you're fully backed by the CARFAX Buyback Guarantee. Save money at the pump with this fuel-sipping Volkswagen Jetta Sedan. Tires can be an expensive maintenance item. Luckily, this vehicle's tires are newly installed, so you've got miles and miles to go before you need to replace them. Rare is the vehicle that has been driven so gently and maintained so meticulously as this pre-owned beauty. This Volkswagen Jetta Sedan comes equipped with hard-to-find custom wheels. More information about the 2015 Volkswagen Jetta Sedan: The 2015 Jetta competes with the Honda Civic, Mazda3 and Toyota Corolla. Previously, price kept it just out of reach of potential buyers of the competition, but since 2011, Volkswagen has worked to give buyers the best of all worlds -- carefully packaging features and tweaking the Jetta's price level. This means that buyers can get a premium German sedan or wagon at an entry-level price, with fit and finish similar to that on cars that cost two and three times as much. This model sets itself apart with fuel economy on TDI and Hybrid models, good handling and braking, Affordability, terrific trunk space, and excellent fit and finish

Auto Simple has a wide selection of exceptional pre-owned vehicles to choose from, including this 2015 Volkswagen Passat. Your buying risks are reduced thanks to a CARFAX BuyBack Guarantee. The Volkswagen Passat 1.8T Wolfsburg Ed speaks volumes about it's driver, uncompromising individuality, passion for driving, and standards far above the ordinary. It's exceptional fuel-efficiency is a clear sign that not all vehicles are created with the same standards. This Volkswagen Passat comes equipped with new tires at no extra charge. If you are looking for a pre-owned vehicle that looks brand-new, look no further than this Black Uni Volkswagen Passat. Equipped with upgraded wheels, this Volkswagen Passat is stunning to see driving down the street. More information about the 2015 Volkswagen Passat: The Passat is a midsized sedan, fully competitive in price and features with other high-value mid-size models such as the Honda Accord, Hyundai Sonata and Kia Optima. The Passat remains one of the few mid-size sedans to offer the option of a manual transmission and the only non-luxury mid-size to offer a diesel. That TDI model manages an estimated 43 mpg highway rating--better than many hybrids. Strengths of this model include Vast backseat space, excellent efficiency from the TDI model, crisp handling, smooth available VR6, and comfortable ride

Contact Auto Simple today for information on dozens of vehicles like this 2015 Chevrolet Malibu LS. This Chevrolet includes: SEAT ADJUSTER, DRIVER 8-WAY POWER Power Driver Seat TRANSMISSION, 6-SPEED AUTOMATIC, ELECTRONICALLY-CONTROLLED A/T 6-Speed A/T EMISSIONS, FEDERAL REQUIREMENTS STANDARD PAINT SEATS, FRONT BUCKET (STD) Bucket Seats BLACK GRANITE METALLIC LPO, 18" Aluminum Wheels ENGINE, ECOTEC 2.5L DOHC 4-CYLINDER DI 4 Cylinder Engine Gasoline Fuel *Note - For third party subscriptions or services, please contact the dealer for more information.* When you purchase a vehicle with the CARFAX Buyback Guarantee, you're getting what you paid for. Stylish and fuel efficient. It's the perfect vehicle for keeping your fuel costs down and your driving enjoying up. The interior of this Chevrolet Malibu LS has been through meticulous inspection and could almost pass for a brand new vehicle. High-end wheels help round out the many options of this Chevrolet Malibu LS. More information about the 2015 Chevrolet Malibu: The 2015 Malibu competes with mid-size 4-door sedans such as the Toyota Camry, Honda Accord, Ford Fusion and Hyundai Sonata. With its 2013 redesign, and even more so with the new 4G LTE connectivity, the Malibu is being reconfigured more toward busy, always-connected parents and those who place a priority on fuel efficiency. For that, at somewhat less than the Camry Hybrid or Fusion Hybrid, the Malibu stands out as a strong value -- especially for those who plan to do more mileage on the highway. The Malibu should also hit the mark for shoppers who want a fresh design, as well as those who need to stay connected. Design-wise, the Malibu looks up-to-date with the rest of the Chevrolet lineup. And with the standard MyLink system, drivers can get simple hands-free calling functions as well as entertainment through streaming-audio apps. Interesting features of this model are MyLink and 4G LTE connectivity, fresh, contemporary styling, improved ride and handling, and Fuel-efficient powertrains

Auto Simple has a wide selection of exceptional pre-owned vehicles to choose from, including this 2015 Nissan Altima. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. Save money at the pump with this fuel-sipping Nissan Altima. The brand new set of tires means that you will be able to drive off the lot without hesitation. You can drive off in the Nissan Altima 2.5 S feeling safe and confident with these new tires. Beautiful exterior. Clean interior. This Nissan Altima is so immaculate it is practically new. We are proud to offer this 2015 Nissan that truly a "must-have." This vehicle's wheels are one of the many attractive features that this Altima 2.5 S has to offer. More information about the 2015 Nissan Altima: The 2015 Nissan Altima offers plenty of choices for buyers looking for a smart, affordable midsize sedan. With a focus on building premium attributes into every facet of the new Altima -- inside, outside and under the hood -- buyers will find a car that punches above its weight in this hotly contested segment. Interesting features of this model are Handsome, flowing lines, two great engine choices, standard continuously variable transmission, available amenities to suit every taste, and excellent fuel economy from 2.5L

Auto Simple is pleased to be currently offering this 2015 Kia Forte LX with 122,027mi. CARFAX BuyBack Guarantee is reassurance that any major issues with this vehicle will show on CARFAX report. The Kia Forte LX speaks volumes about it's driver, uncompromising individuality, passion for driving, and standards far above the ordinary. It's exceptional fuel-efficiency is a clear sign that not all vehicles are created with the same standards. High-performance tires are another option found on this vehicle. This Kia Forte is beautiful and the interior is clean with virtually no flaws. Upgraded wheels enhance the look of this Kia Forte. More information about the 2015 Kia Forte: The Forte is a compact sedan that's one size down from the Kia Optima and one up from the Kia Rio. It competes in a crowded segment, against some very established nameplates like the Toyota Corolla, Honda Accord, Nissan Sentra, Hyundai Elantra, Volkswagen Jetta and Ford Focus, as well as the relatively new Chevrolet Cruze and Dodge Dart. The Kia stands out for offering a little more equipment for the same price--as well as some standout comfort options, such as a heated steering wheel and cooled driver's seat. There's also a choice between two engines, a fuel-efficient 1.8L and the stronger 2.0L so every buyer can find the right combination of power and fuel economy. Interesting features of this model are standout comfort and convenience options, Stylish exterior, choice of powertrains, great list of standard equipment, and fuel-efficiency

This 2014 Dodge Grand Caravan SXT is offered to you for sale by Auto Simple. Your buying risks are reduced thanks to a CARFAX BuyBack Guarantee. The tires on this vehicle have passed a rigorous inspection for safety, stability and tread life. This Dodge Grand Caravan is beautiful and the interior is clean with virtually no flaws. Equipped with upgraded wheels, this Dodge Grand Caravan is stunning to see driving down the street. More information about the 2014 Dodge Grand Caravan: The Grand Caravan was one of the first minivans to make it big in North America, and it's still one of the best. The base Grand Caravan starts under $21,000 and that brings a 6-speed automatic, heated power mirrors, keyless entry, 2-zone air conditioning, standard stability control, tire pressure monitoring and a host of air bags. EPA-estimated mileage on the highway is a strong 25 mpg. This model sets itself apart with Versatile interior, powerful V6, comfortable ride, and tons of storage space

Auto Simple is excited to offer this 2014 Ford Fiesta. How to protect your purchase? CARFAX BuyBack Guarantee got you covered. Why spend more money than you have to? This Ford Fiesta will help you keep the extra money you'd normally spend on gas. The Fiesta S is well maintained and has just 55,958mi. This low amount of miles makes this vehicle incomparable to the competition. These tires look to be recently changed. Clean interior? How about flawless. This Ford Fiesta looks like has never been used. This Ford is equipped with some of the most amazing wheels the market has to offer! Once you take this Ford Fiesta S for a test drive, you'll instantly realize how much of an added bonus this vehicle's upgraded wheels provide. More information about the 2014 Ford Fiesta: The Fiesta offers a host of connectivity and tech features that aren't typically available in this budget-priced small-car class. Its 40-mpg EPA highway rating is very impressive, while the 6-speed PowerShift transmission is one of the most advanced automatics in any small car. Other features, including push-button start, aren't typically offered in its price class, while a wide range of potential customization and appearance options appeal to younger shoppers who want to express an individual style. Finally, the new 197-hp Fiesta ST offers speed and agility unparalleled in this class. This model sets itself apart with Segment-leading fuel economy, wide range of options and accessories, high-performance ST trim, stylish interior, advanced PowerShift transmission, and low starting price

Looking for a clean, well-cared for 2014 Kia Optima? This is it. CARFAX BuyBack Guarantee is reassurance that any major issues with this vehicle will show on CARFAX report. When it comes to high fuel economy, plenty of versatility and a great looks, this KiaOptima LX cannot be beat. This Kia Optima's superior fuel-efficiency is proof that not all vehicles are created equal. This vehicle's tires have been thoroughly inspected and are classified as "like new." This gently driven vehicle has been well-kept and still has the showroom shine. Equipped with optional wheels. More information about the 2014 Kia Optima: Compared to other mid-size sedans, the Kia Optima stands out for several reasons. Showcasing Kia's more Euro-influenced design direction, the Optima has styling that's more exciting than that of other mid-size sedans. That design means it's quite roomy on the inside. The Optima is also one of the most fuel-efficient mid-size sedans, and it offers quite sporty performance considering its mileage numbers. The turbocharged engine in the SX-Turbo and Limited trims provides the power and acceleration of a V6 but the gas mileage of a four. The Optima is also a very strong value, with a few more features at each trim level than what's found in most comparable models. An available hybrid model adds the appeal of fuel economy and eco-credibility. Kia bolsters the Optima's value by continuing to offer a 10-year warranty on powertrain components. Strengths of this model include excellent warranty, Crisp, Euro-influenced styling, fuel-efficient powertrains, strong value, and capacious interior

This 2014 Ford Focus SE is offered to you for sale by Auto Simple. CARFAX BuyBack Guarantee is reassurance that any major issues with this vehicle will show on CARFAX report. Start enjoying more time in your new ride and less time at the gas station with this 2014 Ford Focus. This vehicle's tires have been thoroughly inspected and are classified as "like new." Pre-owned doesn't have to mean "used." The clean interior of this Ford Focus makes it one of the nicest you'll find. Equipped with optional wheels. More information about the 2014 Ford Focus: The Ford Focus is a small car that offers a number of features otherwise seen in larger or more luxurious vehicles. For instance, the Focus is the first vehicle in its class to offer Active Park Assist, which can actually guide and steer the car into a parking space if the driver moderates speed with the brake. It's also the first small car to offer Ford's MyFord Touch system, which relies on a sophisticated touch-screen system and has advanced voice-command features and can even provide WiFi for the car and the area surrounding. Technology aside, the new Focus stands out from the class for its excellent handling and poise, sporty driving feel and impressive fuel economy. Interesting features of this model are handling and poise, fuel-efficient powertrains, choice of hatchback or sedan, sleek, charismatic style, sport-oriented ST model, fully electric Focus available, and Innovative technology like Active Park Assist and MyFord Touch

Auto Simple has a wide selection of exceptional pre-owned vehicles to choose from, including this 2014 Kia Forte. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. This 2014 Kia Forte has great acceleration and wonderful styling without sacrificing exceptional fuel economy. Tired of replacing tires? You're in luck. This vehicle just had them replaced for you. The interior of this Kia Forte EX has been through meticulous inspection and could almost pass for a brand new vehicle. The upgraded wheels on this Kia Forte offer an improved ride and an attractive accent to the vehicle. More information about the 2014 Kia Forte: The Forte is a compact sedan that's one size down from the Kia Optima and one up from the Kia Rio. It competes in a crowded segment, against some very established nameplates like the Toyota Corolla, Honda Civic, Nissan Sentra, Hyundai Elantra, Volkswagen Jetta and Ford Focus, as well as the relatively recent Chevrolet Cruze and Dodge Dart. The Kia stands out for offering a little more equipment for the same price--as well as some standout comfort options, such as a heated steering wheel and cooled driver's seat. There's also a choice between two engines, a fuel-efficient 1.8L and the stronger 2.0L so every buyer can find the right combination of power and fuel economy. Strengths of this model include great list of standard equipment, choice of powertrains, fuel-efficiency, standout comfort and convenience options, and Stylish new exterior

Looking for a clean, well-cared for 2014 Ford Focus? This is it. Your buying risks are reduced thanks to a CARFAX BuyBack Guarantee. The Ford Focus S is economically and environmentally smart. Ford clearly delivers on its promise to provide a fuel-efficient vehicle that has the great qualities you need in a vehicle. With new tires, this vehicle is ready for miles and miles of driving. This pre-owned Ford Focus looks like new with a clean interior that's been well-kept. High-end wheels help round out the many options of this Ford Focus S. More information about the 2014 Ford Focus: The Ford Focus is a small car that offers a number of features otherwise seen in larger or more luxurious vehicles. For instance, the Focus is the first vehicle in its class to offer Active Park Assist, which can actually guide and steer the car into a parking space if the driver moderates speed with the brake. It's also the first small car to offer Ford's MyFord Touch system, which relies on a sophisticated touch-screen system and has advanced voice-command features and can even provide WiFi for the car and the area surrounding. Technology aside, the new Focus stands out from the class for its excellent handling and poise, sporty driving feel and impressive fuel economy. This model sets itself apart with handling and poise, fuel-efficient powertrains, choice of hatchback or sedan, sleek, charismatic style, sport-oriented ST model, fully electric Focus available, and Innovative technology like Active Park Assist and MyFord Touch

Thank you for your interest in one of Auto Simple's online offerings. Please continue for more information regarding this 2014 Chevrolet Cruze 1LT with 95,662mi. Drive home in your new pre-owned vehicle with the knowledge you're fully backed by the CARFAX Buyback Guarantee. Start enjoying more time in your new ride and less time at the gas station with this 2014 Chevrolet Cruze. This Chevrolet Cruze comes with new tires for an improved ride, better fuel economy and quieter drive. This Chevrolet Cruze is beautiful and the interior is clean with virtually no flaws. This vehicle comes equipped with custom wheels. The Chevrolet CRUZE looks compact on the outside but is full of features on the inside that make it a driving favorite. Outfitted with a modern 4-cylinder turbocharged ECOTEC engine and six-speed manual or available automatic transmission, the Cruze drives smoothly and has both power and fuel efficiency. Choose the Cruze Turbo Diesel and take advantage of performance and efficiency that diesel provides. Safety features include Anti-Lock Brakes, a full ten airbags, electronic stability control, traction control, and the basic design features you see in larger vehicles. You can also take technology to the max with available Bluetooth, steering wheel audio control, and available OnStar. USB port and satellite radio cabability comes standard, and some trims include the touch-screen Chevrolet MyLink entertainment system onboard. Visit us for more information about all the features packed into this fuel efficient and fun to drive package!

Thank you for visiting another one of Auto Simple's online listings! Please continue for more information on this 2014 Hyundai Sonata GLS with 88,079mi. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. Start enjoying more time in your new ride and less time at the gas station with this 2014 Hyundai Sonata. Searching for a vehicle shouldn't mean that you have to buy one with flat, bald, and outdated tires. In the case of this 2014 Hyundai, the tires have been recently replaced and show to have good tread. Looking for a Hyundai Sonata that is in great condition inside and out? Take a look at this beauty. Upgraded wheel package makes this Hyundai Sonata stand out from the rest. More information about the 2014 Hyundai Sonata: The Hyundai Sonata stands out among mid-size sedans for offering one of the most generous sets of standard features. While most of its competition-- which includes the likes of the Ford Fusion, Chevrolet Malibu, Toyota Camry, Nissan Maxima and Honda Accord --have been fully redesigned in the past couple of years, the Sonata is fully on par with those models. In usable interior space, cargo space, and ride comfort, the Sonata is a step ahead of many of its mid-size rivals. The Sonata has one of the best turning circles in its class, Hyundai points out; and for those who place a greater weight on fuel efficiency, there's a Sonata Hybrid that achieves EPA ratings of 38 mpg city, 40 highway. Interesting features of this model are refined look for 2014, passenger and cargo space, generous standard-feature set, smooth ride, and Fuel-efficient powertrains

Looking for a clean, well-cared for 2014 Chrysler Town & Country? This is it. Your buying risks are reduced thanks to a CARFAX BuyBack Guarantee. HD quality video and studio grade sound are just a few platinum level features the entertainment package of this vehicle boasts. Marked by excellent quality and features with unmistakable refined leather interior that added value and class to the Chrysler Town & Country With an efficient and easy to use navigation system, this Chrysler Town & Country will help get you from Point A to Point B in no time flat. High-performance tires are another option found on this vehicle. This pre-owned Chrysler Town & Country looks like new with a clean interior that's been well-kept. Equipped with upgraded wheels, this Chrysler Town & Country is stunning to see driving down the street. More information about the 2014 Chrysler Town & Country: The Chrysler Town & Country's 283-horsepower Pentastar V6, which includes a driver-selectable "Fuel Economizer" mode, is mated to a 6-speed transmission and uses premium low rolling-resistance tires to deliver an estimated 17 mpg city and 25 mpg highway. An impressive luxury-style interior and optional UConnect technology brings the latest in voice-activated multimedia connections, navigation and entertainment to Chrysler's premium minivan. Strengths of this model include luxury interior appointments, impressive airbag array and safety engineering, Powerful engine, advanced technologies with navigation., and electronic entertainment with dual DVD systems

Thank you for your interest in one of Auto Simple's online offerings. Please continue for more information regarding this 2014 Jeep Patriot Sport with 112,631mi. Drive home in your new pre-owned vehicle with the knowledge you're fully backed by the CARFAX Buyback Guarantee. This Jeep Patriot Sport is an incredibly versatile vehicle that is a "must have" for any family. High-performance tires are another option found on this vehicle. Beautiful exterior. Clean interior. This Jeep Patriot is so immaculate it is practically new. More information about the 2014 Jeep Patriot: The Patriot is an unexpectedly capable city car, combining a boxy, rugged-looking traditional Jeep appearance with car-like handling, good outward visibility, an economical powertrain, an interior that's comfortable for four adults and a city-friendly small-car size. The drivetrain and ground clearance, combined with an available Freedom-Drive II off-road package, makes for respectable off-road capability as well. Although the base model is basic, it's quite a bargain for a vehicle that includes all the essential safety equipment; and for those willing to option-up, there are more high-tech options than is typical for a basic sport-utility. Plus the Patriot achieves some of the best fuel economy numbers in its class. This model sets itself apart with off-road ability plus fuel economy, Interior and cargo space, maneuverability and parking ease, tech options, and safety features

Auto Simple has a wide selection of exceptional pre-owned vehicles to choose from, including this 2014 Hyundai Tucson. This vehicle is loaded with great features, plus it comes with the CARFAX BuyBack Guarantee. This SUV is a superb example of what a tough, work focused vehicle should be. Exceptional towing, acceleration and torque will help you get the job done. The new tires on this Hyundai Tucson are the ultimate complement to an already exquisite vehicle. Pre-owned doesn't have to mean "used." The clean interior of this Hyundai Tucson makes it one of the nicest you'll find. This vehicle comes with upgraded wheels for improved performance. More information about the 2014 Hyundai Tucson: The Tucson has a lot going for it when matched up against the competition. With either available direct-injected engine, the Tucson has some of the highest combined and highway fuel economy ratings in its class. The Tucson has a longer wheelbase than its rivals yet has one of the shortest turning diameters, which keeps it settled and stable on the open road but also maneuverable in tight spaces. Hyundai also notes that there is more interior space than in some vehicles a class larger, while rear-seat legroom is class-leading. This model sets itself apart with Class-leading fuel efficiency, responsive powertrains, safety features, generous standard features, rear passenger space, and smooth ride

Auto Simple is honored to present a wonderful example of pure vehicle design... this 2014 Nissan Altima 2.5 S only has 125,318mi on it and could potentially be the vehicle of your dreams! Drive home in your new pre-owned vehicle with the knowledge you're fully backed by the CARFAX Buyback Guarantee. Save money at the pump with this fuel-sipping Nissan Altima. The handling and stopping power of this Nissan Altima is enhanced by the recently replaced tires. Clean interior? How about flawless. This Nissan Altima looks like has never been used. The standard wheels have been upgraded to gives this vehicle a whole new style. More information about the 2014 Nissan Altima: The 2014 Nissan Altima offers plenty of choices for buyers looking for a smart, affordable midsize sedan. With a focus on building premium attributes into every facet of the new Altima--inside, outside and under the hood--buyers will find a car that punches above its weight in this hotly contested segment. This model sets itself apart with standard continuously variable transmission, available amenities to suit every taste, Handsome, flowing lines, two great engine choices, and excellent fuel economy from 2.5L

Contact Auto Simple today for information on dozens of vehicles like this 2014 Hyundai Sonata GLS. CARFAX BuyBack Guarantee is reassurance that any major issues with this vehicle will show on CARFAX report. Why spend more money than you have to? This Hyundai Sonata will help you keep the extra money you'd normally spend on gas. With new tires, this vehicle is ready for miles and miles of driving. This Hyundai Sonata GLS is in great condition both inside and out. No abnormal wear and tear. Equipped with upgraded wheels, this Hyundai Sonata is stunning to see driving down the street. More information about the 2014 Hyundai Sonata: The Hyundai Sonata stands out among mid-size sedans for offering one of the most generous sets of standard features. While most of its competition-- which includes the likes of the Ford Fusion, Chevrolet Malibu, Toyota Camry, Nissan Maxima and Honda Accord --have been fully redesigned in the past couple of years, the Sonata is fully on par with those models. In usable interior space, cargo space, and ride comfort, the Sonata is a step ahead of many of its mid-size rivals. The Sonata has one of the best turning circles in its class, Hyundai points out; and for those who place a greater weight on fuel efficiency, there's a Sonata Hybrid that achieves EPA ratings of 38 mpg city, 40 highway. This model sets itself apart with refined look for 2014, passenger and cargo space, generous standard-feature set, smooth ride, and Fuel-efficient powertrains