I've put this list on another thread, but I'm adding more cars to it. These are the exact standard cars in GT5 that I would like to see premiumized in GT6. I'll be happy if even 10% of this list is all premiumized though.
- 1965 Shelby GT.350 R
- 2002 Ford Focus RS
- 2003 Ford F-150 SVT Lightning
- 2000 Ford Mustang SVT Cobra R
- 2003 Dodge SRT-4
- 2003 Dodge Viper SRT-10
- 2000 Dodge Viper GTS-R Team Oreca #91
- 2004 BMW M3 (e46)
- 2003 BMW M3 CSL (e46)
- 2003 BMW M3 GTR (e46)
- 1998 BMW Z3 M Coupe
- 1992 Mercedes-Benz 190E Evolution II
- 2000 Mercedes-Benz CLK 55 AMG
- 2003 Mercedes-Benz E 55 AMG
- 2002 Mercedes-Benz SL 65 AMG (R230)
- 2009 Bugatti Veyron
- 2002 Jaguar XKR R Performance
- 1992 Jaguar XJ220
- 2010 Jaguar XFR
- 1998 Aston Martin V8 Vantage
- 2000 Aston Martin DB7 Vantage Coupe
- 1985 Peugeot 205 Turbo 16
- 2002 Peugeot 206 RC
- 2003 Mazda Axela 23S
- 2000 Mazda MX-5 Miata 1800 RS (NB)
- 2004 Holden Commodore SS
- 1997 Chevrolet Camaro Z28
- 2000 Chevrolet Camaro SS
- 1954 Chevrolet Corvette Convertible (C1)
- 1963 Chevrolet Corvette Coupe Sting Ray (C2)
- 2000 Chevrolet Corvette C5.R
- 2000 Lamborghini NOMAD Diablo GT1 (JGTC)
- 1986 Ruf CTR Yellow Bird
- 1996 Ruf CTR 2
- 2000 Ruf RGT
- 2000 Volkswagen New Beetle RSI
- 2002 Volkswagen Lupo GTI
- 2003 Volkswagen Polo GTI
- 2003 Volkswagen Golf R32 Mk. IV
- 1991 Honda CR-X SiR
- 1995 Honda Civic 3 Door Sir (EG)
- 2004 Honda Civic Type R
- 1991 Toyota Celica GT Four RC (ST185)
- 1998 Toyota Celica GT Four (ST205)
- 1990 Toyota Supra Twin Turbo R (JZA70)
- 1997 Toyota Supra RZ (JZA80)
- 1998 Mitsubishi Lancer Evolution V GSR
- 1998 Subaru Impreza 22B Sti Version (GC8)
- 2001 Subaru Impreza Sedan WRX Sti
- 1970 Nissan Skyline GT-R (KPGC10)
- 1971 Nissan Skyline GT-R (KPGC110)
- 1996 Nissan Silvia K's Aero (S14)
- 1971 Datsun 240ZG
- 1998 Nissan 300ZX Twin Turbo 2 Seater (Z32)
EDIT: One muscle car I would love to see in any new driving game;
HPP Superbird