2ZZ in 3rd gen MR2 (Spyder) - lighter and better than MkI MR2 and much lighter than MKII. otherwise, MrSideways has it.

I think 1.8L miatas still have a chance due to the sum of their parts phenomenon. 2.0L MX5 might be good too but HEAVY.

B16/17/18 cvics will be winning everywhere - they fit the rules to a t.