Who am I?

Scroll down
to  find out





 Hint #1
I was Indy 500
rookie of the
  year.




 Hint #2
I was the very
first IROC
champion




 Hint #3
I raced in F1




 Hint #4
I won the Indy
500, the first for
Penske Racing




  I AM
 MARK
DONOHUE