Raced a m6.......Procede 335i it good at high altitudes.
The race was at about 4300 feet bTW. From a dig to about 125mph. I beat it by 1-2 car lengths. I stopped at redline in fourth. I'm assuming he would have been pulling ahead had it continued another gear. He was surprised, I wasn't really. He's got to be losing at least 50hp at that elevation.
I talked to him after and explained his power loss at elevation.......he was a bit bummed I could tell. It was a pretty cabrio light green color. Nice rims too.
Oh. I have procede BTW. Nothing else.