There was no comparison when I raced my friends '02 last thursday. We ran 3 times and it went something like this. Run #1- I took him by at least 8 bike lengths (about 1/4 mile distance). Run #2- Shifted into second but I guess I didn't click it all the way up so I redlined it in neutral, tried again and caught it this time. I still managed to take him by about 4 bike lengths. Run #3- Flawless shifting up to about 12 1/2 rpms in first and second and it was the same story as run #1. I've only been riding for about 3 months and he has been at it for about a year and a half so either I'm already that much better than him or the '03 636 is the $hit. I'd have to go with my second theory.