Peter Giddings in his Alfa Romeo Tipo C 8C-35, Laguna Seca turn 5.
Used to see more of these on the track, but with a GTO selling for $38,000,000 that same weekend, don't expect to see them often.
Siata 208s, with a 2.0 litre Fiat V8. Notice any similarity to a Cobra? Oh yeah, that came ten years later.
1914 Mercedes 18/100, powered by a single cam, 16 valve four cylinder. If I understood the announcers correctly, this car won the last Grand Prix held prior to WWI.
Bruce McCaw, 1929 Bentley 4.5 liter Le Mans replica.
It took a few minutes to figure out the front suspension on this car.