Home · 2020 BMW M8 · Complaints

What 5 owners told NHTSA about the 2020 BMW M8

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (5)Crash / fire / injury (1)Speed control (2)Brakes (1)Driver assistance (1)Electrical system (1)Engine (1)Fuel system (1)Transmission & drivetrain (1)Visibility & wipers (1)

1 of 5 complaints match · crash/fire/injury only · clear filters

Jan 12, 2026Electrical systemSpeed controlEngineCrash1 injury

On [XXX]. My car went into unintended acceleration at full throttle of 8000 RPMs. The engine was stuck at maximum power and would not slow down. My car slide until it hit a curb and was forced to stop. However, the engine was still running at full maximum capacity at full unintended acceleration. My [XXX] son had to go to ER and it almost cost the lives of 4 other people. I am very scared to ever drive this car as it is now a threat to safety for everyone driving near this car. Please report this to the BMW NA manufacturer since they have their engineering looking at the vehicle. Please call me with a resolution at [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11710392

Working with the data? Download all 5 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 BMW M8 verdict →