Really? I think I was reading IGN's review maybe and they said rubberband AI wasn't an issue. It's been one of those things that's kept me from buying a racing game and I was really considering buying this one.
Well everything else in the game is great (for an arcade racer). So it's still a good game cos it's still the only thing negative thing.
But if you don't mind all races to be tight to end you should buy it.