I tested the list (except the race cars - cause they wont be paintable anyway...I guess)
Of the cars which weren't paintable in GT5,
these are now paintable in GT6:
- Chevrolet Camaro SS '69
- Chevrolet Chevelle SS '70
- Chevrolet Corvette Convertible (C1) '54
-
Citroen 2CV '54
- Citroen Xsara VTR '03
- Honda Element '03
- Nismo Skyline GT-R S-tune (R32) '00
Car which are
still unpaintable:
- Audi R8 LMS Race Car '09
- SRT Viper GTS '99
- Mazda Furai '08
- Nismo 400R '96
- Mugen S2000 '00
- Plymouth Cuda 440 Six Pack '71
Also tested and unpaintable:
- Mario Andretti's Hudson
- Renault R8 Gordini
Copy the list in your OP if you like and fill it with more finds of all people.
Maybe you want to call it cars which are unpaintable in GT6. do with it what you like. If you need more tests, I can test em np.
BTW I also tested (in ver 1.02) to paint the Maserati's wheels via the old GT5 glitch, but It does not work. Merely because the settings cannot be named anymore...