Could someone please explain to me why SCCA doesn't just use power/weight ratio to class cars? I really want to build an IT car and am trying to learn as much as I can. It seems to me most threads on IT.com always end up in a car classing debate. This thread is trying to go there as well.

I'm a novice, my question is not loaded. Power/weight seems very logical with a few controlled parameters (tire widths for example). What are the drawbacks of this approach? I've looked at CMC and AI and those rules make a ton of sense to me. Am I over simplifying it?

Thanks,
Scott