Top 10 Most Fuel-efficient Non-hybrid Compact SUVs Published on September 18, 2020 in Top 10 by Guillaume Rivard Photo: Mazda 7. 2021 Mazda CX-5 (with cylinder deactivation)187-horsepower engine, 6-speed automatic transmission, FWDFuel consumption (city/highway/combined): 9.3/7.6/8.5