Blue are brand new cars. Green are returning cars from Gran Turismo 6 and Brown/Maroon are cars that used to be standard but became Premium in GT Sport.
So i'm thinking that most of the new cars in the following update would be simply GT6 cars returning and maybe one or two new cars for the series.
I would assume something like this for example:
- Acura NSX '91
- Ferrari 250 GT Berlinetta passo corto CN.2521 '61
- Ford Mark IV Race Car '67
- Lamborghini Reventon '08
- Lotus Elise '11
- Mercedes-Benz SLR McLaren (19 inch Wheel Option) '09
- Mclaren P1 '15
- Nissan Fairlady Z 300ZX TwinTurbo 2seater (Z32) '89
- Pagani Huayra '13
- Plymouth AAR Cuda 340 Six Barrel '70
- Toyota GT-ONE Road Car (TS020) '98
- Volkswagen Beetle 1200 '66