You guys realize having two racers only replaced the "holding an item behind you while you pick up another" technique used in Mario Kart 64...right? I mean, that's the only difference between having one or two racers on the same cart.
What I'm saying is...either way it's the same thing.
And FFS, we don't need your "alerts" on the quality of the game's graphics. We can see that the game needs work. At the same time, everything seen so far is a ROUGH DEMO of the final product. I've said this in another thread, but Prime 3 looked pretty bland at first, and when the game was finally released it was, in my opinion, the best looking game on the Wii to date.
As far as the game not having twists, read IGN's article that just came out today. They said the game has tons of new stuff, but Reggie made them promise not to say anything.
The "tricks" give the player a speed boost so they're far from "useless" as you called them.
If graphics and lack of stat tracking prevent you from buying a game, that's fine...if you're completely illogical. I'm not the biggest Mario Kart fan in the world, but I am a big fan of making well-informed decisions.