Originally Posted by singularity
Thanks for the answer. Which one of those M5's in that video is PP-Performance Stage 2? Other than E63 spanking both cars to a shame. Please record a video showing the difference between stock vs PP-Performance that a person who buys it can expect.
A video "showing the difference" can easily be manipulated with one car being driven less aggresively. It's a much better proof of power to show time slips or similar documentation (as has been done here allready and will be done tomorrow as well).
If the car is significantly faster down the 1/4 mile than a stock car that's down to power. And, quoted 1/4 mile times for a stock M5 can be compared between several M5's that does the 1/4 mile so it's not possible to get away with a staged comparison.