For those that don't know, Bill Collins was Rookie of the Year in the Trans Am in 1972. He drove a Javelin that was raced the previous year by Mark Donohue for Penske.
Another interesting fact...the #73 in T2 is actually a T1 car. It is running in T2, due to a typo in the GCR. As of next Friday, it is officially a T1 car.