10 Surprisingly Fuel-efficient Vehicles Published on April 22, 2020 in Top 10 by Guillaume Rivard Photo: Toyota 2020 Toyota CamryEquipped with an eight-speed automatic transmission, the 203-horsepower, four-cylinder Camry (6.9 L/100 km) burns as little fuel as a manual, 106-horsepower Yaris—and less than many other smaller cars, to boot.