In the NA version... The Mitsu GTO's are GT3000's, The Oullim is the Proto, The Mazda Cosmo's are 110's, The Vauxhalls are Opels, The Viper 51 is 91... So, they are not all included here cause they are basically the same car duplicated, although the Opel Vauxhall and Vipers livery are a bit different. ... Here's a list of "Standards" that as far as I know were not in the NA version of GT4... Please feel free to add to this list as needed on any that I may have missed ! (Other cars that are both premium and standard are not included either ) Imho these actually could be marked semi standard like in GT6. My guess is they were not finished in the attempt to get out GT5 to the shelves. Audi R8 LMS Race Car '09 Audi R8 LMS Team PlayStation '09 Audi R8 PlayStation Team Oreca '05 Bugatti Veyron 16.4 '09 Jaguar XFR '10 Lamborghini Countach 25th Anniversary '08 Lamborghini Countach LP400 '74 Lamborghini NOMAD Diablo GT-1 '00 Lexus GT-1 Race Car '04 Mazda Furai Concept '08 Pescarolo C60 Hybride Judd Race Car '05 Again... Please feel free to add to this list as needed on any that I may have missed cause I'm not sure on all ?