From NeoGAF:

Kart Attack is a brand new racing game destined for Xbox Live Arcade, the Playstation Network and Games for Windows - Live. This revolutionary title includes stunning next generation graphics surpassing those found in many AAA titles, and a driving model which is both easy to get to grips with and fun to play. Whether you're challenging opponents online, trying to beat the stunningly intelligent AI characters or improving your own times at one of our exclusive themed circuits, you're sure to have fantastic fun with the gaming sensation which is Kart Attack.

Are these the graphics in-game?

Well this game looks cool, even for a XBLA game.

Rather play this than GT5. They probably have crazy kart damage.

Looks great for a network game.

Wow looks fantastic. Man i Really can't wait to get my PS3, but i promised my self to get it when mgs4 comes outm might have to get it in early jan though, my Wii needs a new buddy (PS2 is too old now).

Those are some pretty screenshots, wow.

Wow this is the lamest game I have ever seen. You guys actually think this looks good? A kart racer with realistic graphics. I never EVER thought I'd see the day this happened. This is even worse than that bowling game for PSN.

Kart racers are unrealistic over the top racing games that are supposed to have a lot of character in them. This game loses all of that with this "realisitic" style.

Technically the graphics look nice, but the whole concept of bringing a realistic style to a kart racer is just disgusting.

The lamest opinion, can I here some more?

You do know they actually have real life kart races like this right?

 You know they actually have real life Kinetic Sculpture Races too, right?

http://en.wikipedia.org/wiki/Kinetic_sculpture_race

-that would make a sick game.

And I guarentee if someone made it, it wouldn't have realisitic graphics.