Top 10 Top 10 Most Fuel-Efficient Cars in 2024 by Nicolas Tardif August 30, 2024 Photo: Marc Lachapelle8. Toyota Crown (5.7 L/100 km) The Avalon’s successor is an upscale, funky-looking sedan with hybrid power exclusively. It comes with a steep price, however, especially in Platinum trim (340 hp, 7.8 L/100 km), which retails for nearly $65,000. « PreviousNext » Share on Facebook Share: