Is the M6 a V12?
The BMW M6 was already a serious performance machine, originally powered by a high-revving 5. V10 producing over 500 horsepower. Swapping that engine for a V12 pushes the car into a completely different league, introducing supercar-level power, torque, and presence that few expect from a luxury coupe. When comparing the BMW M8’s and the BMW M6’s specifications and ratings, the BMW M8 has the advantage in the areas of fuel efficiency, interior volume and base engine power. Based on this comparison of the BMW M8’s and the BMW M6’s specifications and ratings, the BMW M8 is a better car than the BMW M6.When it comes to raw power, the 2025 BMW M8 holds a clear advantage over the 2025 BMW M4. With its larger displacement V8 engine, the 2025 BMW M8 is expected to deliver significantly more horsepower and torque, translating to quicker acceleration and higher top speeds.The Bottom Line. The BMW M8 Grand Coupe is good, very good, but its performance still lags behind the Porsche, and this combined with its disconnected steering feedback, unbalanced pedal feel and stiff driving experience makes the Porsche 911 Turbo the winner.