It's a pretty cool game that u can play online and its free. It launched yesterday. The only problem I have with the game is the drifting. Also, being that its online, I bet a lot of people are gonna find exploits or bugs and use it to their advantage. Sure there's not much to buy in the shops atm but the game just launched so its understandable.
Here's the site if anyone's interested: http://kart.nexon.net/