[catpat8000]

Originally Posted by stealth.pilot

Auto sport and motor did a dyno test of three cars in a comparo.

http://f10.m5post.com/forums/showthread.php?t=679580

I found a bunch of road tests of the 2013 M5, all with a trap speed between 121 and 123 mph.

Calculating the hp needed to produce those trap speeds with a weight of 4300 lbs comes in around 620hp.

Taking the claimed hp (560) and the weight (4300 lbs), the car ought to trap around 116-117.

So my hp/acceleration model is mis-calibrated or the car seems like it's under-rated.

Cool.

Pat