I\'m not a big fan of all-out arcade racers, but I found this game to be highly enjoyable and very worthwhile. The thing about the unlocked cars, they\'re pretty cool and have their advantages but overall, you can win any race with any car if you do it right. So no, it won\'t really step up the enjoyment beyond the sense of accomplishment.
The fun of it all was the sheer speed of the game, the power-ups, the tricks. You should\'ve gotten that from it right off, if not you might want to unload this one and pick up a more legitimate racer...