...one of Gurney's sons for Dan Gurney. I think I saw a couple of his sons
at Monterey, they look pretty much like Gurney as a young driver.
...also Ken Miles son, Peter, for Ken Miles, though his nose isn't nearly as prominent as his dad's and he'd have to add that cockney accent.
--for Enzo Ferrari , Dick Marconi who owns a car museum in SoCal, and has the white hair, but you'd have to put a pillow under his shirt to give him the paunch...see him here
http://www.marconimuseum.org/default.asp?contentID=14
,,,for Henry Ford II, aka The Deuce, John Goodman
..for Pete Brock, Leonardo de Caprio