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).