What engine you using?

I'm just glad that there are more game developers that are choosing to do things that aren't more God-awful horror games that have no plot. I'm not sure how much time/processing power you have to make all of this stuff, but off the top of my head I can think of, -A racetrack set up on the top of skyscrapers connected by rickety wood/metal bridges -A car that has the front of an indy 500 racecar but the back of a hippie bus -A track that starts of in a laboratory but soon goes into a series of teleporters that warp the player to places like the surface of an asteroid and the polar ice caps before returning to the lab -A limousine car that has an eccentric smily face decal on the hood -A track that's inside of an art museum which has paintings that are screenshots of the rest of the game

Add breeding so you can have the cars make babies to make a whole new car.

Don't use Unreal. Its controls suck, the engine itself isn't user friendly to any extent, and if you choose to distribute your game it will be a pain in the ass. I would go with either Unity (it accepts most programming languages I think, as well as being user friendly) or CryEngine (the most beautiful engine out there in my opinion, lots of people you can recruit to work on a project through its website). As far as ideas for your racing game, will it be like Forza or Mario Kart?

What sort of languages / engines are you thinking of using?