As I said.... Robbie Gordon is my favorite American driver out there. The man is a genious behind the wheel of everything he touches... man, remember Paris Dakar 2005??? holy crap at his stage times... first time in any professional rally event, and he was taking it to Colin McRae may he RIP.
R. Millen is hardly talented. Give any car buff a month with a big budget to drift, and he will suddenly be an unknown. His dad would be much better... but isn't the kind of guy who could lap so quickly as Robbie Gordon IMHO. Grip racer > Drift showboat
~~IMO
As to my request for Ryan Seabiscuit.... he is a very similar character to Hammond. And would play the "odd man out" VERY well.
the problem with your hero of 3 is that they are all primary spotlight characters... and would not share the camera/show well at all. That is why TG2 works so well... the dichotomy of personalities