You're adding more tracks? That's awesome!! I wasn't going to say anything, but the more levels the better!
Q.
What kind of voice acting is in the game?
And you might have answered this, but are you going to sell this? I'm guessing it's going to be commercial quality, but you've had awful luck with game sales in the past. If you do, I'd recommend a large number of tracks and difficulty settings (about say 8-10 tracks), and selling it for more than $10, say at least $15. If it goes well, you could re release D&C, at a price more around $15 as well, or perhaps sell the kart game for $15, with the option of paying $20 for D&C bundled with it. Just an idea, if you don't want to sell it then by all means don't.
Superman wears Chuck Norris PJ's