Get ahead of as amny as I can on the first lap (which si usually everyone because I'm very good), get boost power on second lap and then boost as much as I can. I usually learn where all the energy restoring pits are on the levels and when it's best to boost. I don't kill at all most of the time, I just kill all the other racers finishing first chances. Occassionally though I enjoy going on a killing spree.
I'm finished here...
Special thanks to Yossy666 for the avatar and signature images.