ATTENTION, YOU! KARTRIDER IS IN OPEN BETA NOW. PLAY IT.
It's here! KartRider Dash is Nexon's newest Facebook game. And I'll be damned if I don't think that it actually plays pretty decently. Very memorial of the original KartRider.
There are two race modes - Item and Speed - and is multiplayer-only. You can play with Facebook friends directly, or you can play with strangers.
The game is currently in Closed Beta. Sorry I got your hopes up! But Southperricans who are in can use this as a discussion thread.
The game is currently in Open Beta. WHAT ARE YOU WAITING FOR SERIOUSLY. GO PLAY.
Unlike my experience with the original KartRider, there is no lag AT ALL. It's amazing.
And the current customizations available in Beta are pretty great, with six characters and six karts, all of which can be of different colors.
EDIT: Now that it's in open beta, there are seven purchaseable characters (you start with two) and ten purchaseable karts (you start with one). And yes, they can still all be different colors. THERE ARE ALSO NEW TRACKS.