Among these are more horsepower, upgraded brakes, larger intakes, a raunchy exhaust note and, in classic M fashion, four tailpipes to . Speaking of the engine, BMW hasn’t uttered a peep about what that might be. The wiser among us would probably place their bets on it being the 4.4-liter twin-turbo V8 that makes 600 horsepower . No word on whether it’ll be boosted to make extra horsepower, but BMW did say it will have “significantly boosted power.” Whatever that means. Signs BMW is serious about making this a performance car is the fact that development of a GTE-spec BMW M8 is underway to lead BMW Motorsports' return to LeMans.