Well I'd probably be lying if I said I wasn't looking for a turbo miata... I'm still doing some research to figure out what exactly I'm looking for.
Mainly I'm looking for an HPDE car that is reliable, has about 220-240whp, and hopefully has A/C (Florida is hot 8 months out of the year), and most importantly is tuned well and conservatively (i.e. dyno tuned, knock sensors retard timing, EGT, AFRs in appropriate range, boost at the lowest level needed to make these numbers, possible limp mode if something goes wrong, etc). So, like Hustler since I want to drive to the track, run all day, and drive home in A/C comfort.
You can't underestimate the appreciation of A/C after an all-day run at Homestead then have to drive back 5 hours in stop and go traffic through Miami in a semi-heat soaked car.
So I'm looking at stock vs. built engine, fuel system needed to support, cooling system and coolant reroute, EMS used (something parallel with the stock would be preferable due to ease of complicity), etc. Something to survive the next 5 years of track abuse and up to 60 minute runs without overloading the cooling system.
I'm keeping an open mind since the main idea is HPDE fun and reliability. Still doing forum research, etc.