Top 10 Most Fuel-efficient Non-hybrid Compact SUVs Published on September 18, 2020 in Top 10 by Guillaume Rivard Photo: Toyota 1. Tie 2021 Toyota RAV4 (with start/stop)203-horsepower engine, 8-speed automatic transmission, FWDFuel consumption (city/highway/combined): 8.5/6.8/7.7