We race Champ and Lemons. Lemons would be easier and much cheaper. All I can say is read the rules and read them again. Lemons would give no slack if you bring one of those. If you have never raced before Champ car would be a hard start. Since they have reduced the "points" structure everybody is fast. The cage is the most important thing, if you have never done one, hire somebody. Both are extremely fun.