Rivian R1S All-Terrain Tri Max (20in) Fuel Economy History

MPG by year — EPA official data.

Best MPG Year

2026

68 MPG combined

Latest Model

2026

68 MPG combined

Year	Engine	City	Hwy	Combined	Fuel Cost/yr
2026	Electricity EV	72	63	68	$1,100	Details →
2025	Electricity EV	72	63	68	$1,100	Details →