NFS most wanted is the best in the series imho, great driving physics great stacks and chases and tuning hehe. carbon + prostreet were crappy. (carbon was ok but had crap tracks) Back in the day nfs3 and nfs high stakes were awesome on pc coz there was about 30 holdens and fords you could download and add to the game. Nfs6 hot pursuit 2 you can add cars to that too, turned the gts cop cars into hrt427's lol (much faster and with corvette sounds) had aussie cop skins too, full of win
HAHA thats what i was talkin about, i had a fleet of holdens and a couple of select fords to beat, what an awesome concept and modding community.
Porsche Unleashed on the PC I found the most fun for me, good game physics, tuning and having to repair you cars after races, gave you incentive not to crash. Haven't played Most Wanted yet, HS2 wasn't too bad, Underground/2 and carbon are about the same, average.
i will be getting this sure but u could've search for this 1st i created a topic on this already http://forums.justcommodores.com.au/lan-lounge/78878-need-speed-undercover.html