Interesting.
My guess is that as Schumacher throw the most cash at this 'hobby' of ours, they have the most team drivers ?
2 of the cars in the top 10 are unavailable, 3 if you count the Fabs, as cars / parts are scarce.
Any privateers in the top 10 ?
Probably non in the top 50

The very reason I don't do nationals !