If we were to go for a fairly wide slice of time, say from 1966 to 1972, that would give us a wide variety of cars to chose from, including cars many of us already have, including the Slot.it Ford Gt40 and Chaparral, Policar Ferrari 330P3, NSR Porsche 908.
Among other entrants are:
Porsche 911
Ferrari 312PB
Alfa Romeo 33/3
Porsche 907
Some more info, links to an Italian site:
http://www.targapedia.com/targa-florio/1960s
"Enjoy every sandwich"
-Warren Zevon