lol well if you look at the laps, the M3 and RS3 laps were set with a different start/finish line. as you can see he was braking on his way to the finish line. that's weird. And he could have easily late braked if he wanted to since the lap would be over already, and it wouldn't matter how the next corner would be screwed up.
nonetheless, a type R is not faster than a M3.