I personally I'm against it, IMO we have clean and any savestate subcategories mainly to allow all or only "stock" cars, but it's just my opinion

Forget it, Formula is slower than a Nitro Lightin', I planned to do same thing, but its worthless, Formula just "sucks" (its fast, but not THAT fast).

As I probably said earlier, I have no strong opinion on this. While I wouldn't do it myself, I don't really think it should be explicitly banned either.

Still though, I think this kind of strategy is better fit for 100% Completion category.

Bottom line, this is a neutral vote from me.