[onewhippedpuppy]

Road course. A little clarification, the plan would be to start casually without an official racing series. There's a decent little track two hours away with daily open practice, and our local SCCA allows karts at their SOLO events. If he decided that he wanted to get serious then we could address it then. Considering his love of sports and that we spend a lot of time on the lake in the summer, I don't see it escalating into a serious organized thing.

Cost is probably a good question to ask, based on the above what can I expect for running cost? I assume tires periodically, basic maintenance/repairs, and the occasional engine? Without the need to seriously compete, I assume that would help keep engine cost way down.