It's kind of an apples and oranges question. If there's loads of traction, the M06 might have a better chance, because it can take advantage of it more readily. Between the 03 and 05, I'd say it's a dead heat. Really depends on setup and driver.

Anyway...subject change... Anyone ever had to change their 500,000wt diff oil in the 3Racing gear diff yet? What colour was it when you opened up the diff? How do you get the old crap out?

I'm letting gravity do the cleaning at the moment and the oil is dark grey. Thoughts?

Jim