Hmm, I had the fastast race lap (not qualifying) as Mark Hales in 1970 Ferrari 512S in 4'24"658.
I'm not sure how that would compare with the 2003 race times, but I don't think he'd be right at the back. Not bad for a 33 year old car.
Err, actually not, just hang on a minute....
It seems that a Mini Cooper driven by Barbara Cartlands remains posted a 3'10", and that would have put her right up there.
H