2021 BMW M8 Gran Coupe
Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 M8 Gran Coupe.
Transmission Automatic (S8)
The 2021 BMW M8 Gran Coupe is a four-door performance sedan that pairs an eight-speed automatic transmission (designated S8) with a substantial 10.5-quart engine oil capacity using 0W-30 viscosity lubricant, delivering EPA-estimated fuel economy of 15 mpg city, 21 mpg highway, and 17 mpg combined; this model year falls within the 2020-2023 production span that recorded only five consumer complaints in its initial year, suggesting a relatively strong reliability trajectory for the nameplate during this period.