'ModNation Racers' - Review

When people think of kart racing games they almost instantly think of 'Mario Kart' and rightly so as it basically created the sub-genre.  What is Kart Racing?  It's basically a type of racing game where you drive tiny vehicles around wacky environments while picking up power-ups and weapons.  Many games have copied it, some not bringing anything to the table, others, like 'ModNation Racers', brought a whole lot.