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 model-year entry in the M8 Gran Coupe line, carrying an automatic (S8) transmission, EPA fuel-economy ratings of 15/21/17 mpg city/highway/combined, and an engine oil service capacity of 10.5 quarts using 0W-30 viscosity. Those transmission, efficiency, and fluid specifications define the routine operational profile for this model year. Within the 2020–2023 model complaint history, the 2021 falls in a window where the 2020 model year registers both the highest and lowest complaint count at five. That means the available complaint record is extremely limited and provides little basis for drawing broader reliability conclusions.