-Sunday Cup
Demio A-spec
Silver
-Clubman Cup
Camaro 30th Anniversary Edition
White with orange stripes
-GT Cup
Soarer LM
Black
-FF Challenge:
CRX EF-8 SiR
Purple with red rims
Black with red rims
Yellow with red rims
Celica SS-II
Green
Yellow
Purple
-FR Challenge
Sil Eighty
Purple
Blue
Yellow
S13 Silvia Q's 1800
Green
Burgundy
Yellow
-4WD Challenge
Lancer GSR Evo.IV
Green
Purple
Yellow
Alcyone SVX S4
Light Blue
Dark Blue
White
-Lightweight Challenge
EK Civic Type-R
Yellow with black trim
Blue with black trim
Pink with black trim
Eunos Roadster
Gold Metallic
Light Purple
Yellow
-US vs. Japan
Viper GTS-R
White with blue stripes
White with green stripes
FTO LM
Black
Green
-UK vs. Japan
Del Sol LM
Red with white stripes
Black with white stripes
Cerbera LM
White with green trim
White with crimson trim
-UK vs. US
Concept Car
Purple
Yellow
RX-7 LM
Green
Purple
-Megaspeed
DB7 Coupe
White
Purple
Red
Soarer 2.5 GT-T VVT-I
Yellow
Purple
???
-Normal
Impreza Sedan WRX v.III
Light blue
Orange
Yellow
Supra RZ
Purple
Sky blue
Copper
-Tuned
AE86 Sprinter Trueno GT Apex
Pink
Blue
Green
'91 Skyline GT-R
Red
Yellow
Blue
-Grand Valley 300km
Castrol Supra GT
Black/red/blue
Black/red/green
-All Night I
S14 Silvia LM
Red
Green
-All Night II
Skyline GT-R LM
Silver
There ya go, taken straight from my ancient FAQ. Hope this helps.
Well, you can't win a green Trueno in either v1.0 or v1.1 of North American [size=+1]GT1[/size].
There are a number of ways to use a game shark to enumerate the colours available for a given car, and white, pink and blue are the only colours for that prize.
(The similar used car version comes in white, red and black aka High-tech two-tone, High flash two-tone and High sonic toning respectively).