Most Fuel-Efficient Midsize Cars in 2026
Updated
105 on record. Ranked by combined MPG; every figure comes from US EPA fueleconomy.gov, with the page it was read from on each entry.
105ranked
5 on this page
#101 2025 Mercedes-Benz AMG S63 E Performance 2025 · All-Wheel Drive · 4.0 L 8-cyl turbo Combined MPG18Combined MPGe49EPA range16 mi 
#102 2025 BMW M8 Competition Gran Coupe 2025 · All-Wheel Drive · 4.4 L 8-cyl turbo Combined MPG17Annual fuel cost$4,850 
#103 2026 Audi RS 7 2026 · All-Wheel Drive · 4.0 L 8-cyl turbo Combined MPG16Annual fuel cost$5,150 
#104 2026 Cadillac CT5 V 2026 · Rear-Wheel Drive · 6.2 L 8-cyl supercharged Combined MPG15Annual fuel cost$5,500 
#105 2027 BMW M5 Sedan 2027 · All-Wheel Drive · 4.4 L 8-cyl turbo Combined MPG14Combined MPGe47EPA range29 mi Photo credits (5)
2025 Mercedes-Benz AMG S63 E Performance: David Adam Kess, CC BY-SA 4.0 · 2025 BMW M8 Competition Gran Coupe: © M 93, CC BY-SA 3.0 de · 2026 Audi RS 7: Alexander Migl, CC BY-SA 4.0 · 2026 Cadillac CT5 V: Elise240SX, CC BY-SA 4.0 · 2027 BMW M5 Sedan: Alexander-93, CC BY-SA 4.0. Photos from Wikimedia Commons; CarCody links each to its file page.