IGN Reviews ModNation Racers
Well, it appears that the review embargo is up on ModNation Racers, as IGN has reviewed it 3 weeks ahead of time :P. Apparently, it’s a definite contender in kart racers, and the creativity and sharing aspects are great. The only real negative they had with the game (that barred anything above the given 9/10) is the extensive loading times, which take a few seconds short of a minute to load a race.
Given the apparent quality of the title and the praise it is receiving, it still sounds good enough to, at the very least, rent it. You can read the full written review here.