Game Idea

So my idea is a biking game. It would consist of all (or mostly) downhill courses, the catch is that you don't have any brakes. I have thought of tons of obstacles and such, like drawbridges or highway crossings. Ideally, I would like to make it so you can choose which biking character you want to use. I would also like to have it so each person would have their own saved game. I can use the racing starter kit, right? This would be my first Torque game. Suggestions, questions, and comments greatly appreciated.