Danny Sullivan's Indy Heat

There are 4 cars in each race, 1 or 2 player options, and 9 tracks to race on, The player has limited fuel, and will run slowly if supplies run out, and the car can be damaged, although both are repairable in the pits. They get a turbo to use sparingly, which can also be recharged in the pits if they have bought more. After each race the player will get money (slightly more for a higher finish), which can be spent on upgrades such as improved power, brakes or more turbos. (mobygames.com)