Generation IV (1 jan 1992 ano – 23 h 59 m, 31 dez 2006 ano)
Descrição:
-Highly-modified body.-Teams spent hours in wind tunnel to gain aero edge.
-Bumpers/nose and tail composed of molded fiberglass based off of production counterparts.
Adicionado na linha do tempo:
Data:
1 jan 1992 ano
23 h 59 m, 31 dez 2006 ano
~ 15 years