In terms of acceleration, the BMW M5 is also slightly faster than the Mercedes-Benz E63 AMG. The M5 can accelerate from 0 to 60 mph in 3.4 seconds, while the E63 AMG can accelerate from 0 to 60 mph in 3.5 seconds.
However, the Mercedes-Benz E63 AMG has a more powerful engine than the BMW M5. The E63 AMG has a 4.0-liter twin-turbo V8 engine that produces 603 horsepower and 627 lb-ft of torque. The M5 has a 4.4-liter twin-turbo V8 engine that produces 592 horsepower and 553 lb-ft of torque.
Overall, the BMW M5 is the faster car, but the Mercedes-Benz E63 AMG is more powerful.
