Okay, this may have been answered before, but my simple Google search gave me nothing.
Obviously, the M5 is a completely different monster. I realize this. However, I would like to know which car is faster in straight-line performance.
The M5 has more 40+ horsepower. However, a Dinan Stage 2 550i has nearly 80 more torque.
On a track, it's a no-brainer. The M5 is a much better overall car. I'm only concerned with straight-line acceleration. This is America, right? We don't care about turns