Here you can find the complete car list in Gran Turismo Concept.

Aston Martin:
Vanquish

Audi:
Abt TT-R DTM
RS4
RS6 Avant
RS6 Limousine

Autobacs Sportscar Laboratory (ASL):
Garaiya

Cadillac:
Cien

Chevrolet:
Corvette C5R Corvette Z06

Chrysler:
Crossfire

Daihatsu:
Copen

Dodge:
Viper GTS-R Prototype

Dome:
Zero

Ford:
Focus RS
GT40
GT40 LM Edition
Ka

Honda:
Civic TypeR
Dualnote
Fit W
Integra Type-R
Integra Type-R LM Edition
NSX-R
NSX-R LM Edition
NSX-R LM Edition Roadcar
NSX JGTC: Arta (2000 Season)
NSX JGTC: Mugen Loctite (2001 Season)

Here you can find the list of all tracks that are in Gran Turismo Concept.

* Autumn Ring
* Midfield Raceway
* Swiss Alps
* Tahiti Maze
* Tokyo R246