At SEMA Mazda announced a "global" Cup Series for The new 2016 MX-5 C&D Cup Series article. They haven't told us what countries are involved.
Here's video from SEMA of the announcement. It's not totally clear, but it almost sounds like mazda will deliver complete cars. SEMA Video
Mazda trying to beat Porsche at their own game?
So if a base car is $30k, can they deliver a race car (sans seat and harnesses, because people have different sized butts) for $40k? $50k?
If it takes $20k to build a spec Miata with fresh everything, would a $40k buy in start to make sense?
This is interesting.