The Spec Miata class is intended to provide the opportunity to compete in low-cost cars with limited modifications, suitable for racing competition. It is intended to encourage low cost, entry level, production car based competition. Spec Miata currently races both sprints and enduros where available.

Mazda Miatas in model years 1990 through 1993 with 1600 cc engines, model years 1994 through 1997 with 1800 cc engines, and model years 1999 through 2005 with 1800 cc engines have been approved by the SCCA for Regional racing in all divisions of the SCCA. The class was approved for National SCCA racing beginning in the 2006 racing season. The "First Ever" Miata National was held at PIR in Phoenix, AZ with Mike Halpin as the "First Ever" National race winner.

As its name shows, Spec Miata is a "specified" class. This means that the rules for allowable modifications to the car are very strict. The class intends to put drivers on a very even footing by making their cars as identical as possible. The rules are far more conservative than the Improved Touring category, but provide equivalent safety measures.

Because of the support of Mazda through Mazdaspeed, the wide availability of the car on the used market, plentiful and inexpensive parts, and the simplicity of maintenance on the cars, Spec Miata has become a very popular class. Also adding to the appeal is the fact that A Spec Miata can be raced in both SM and ITA/ITS in SCCA Regional Competition. A typical race-ready spec miata can be purchased on the market for $8000–$35,000 depending on race win history and specific modifications.

I was lucky enough to drive on a racetrack once, and boy, there is nothing like it. I am so tempted to pick up a Miata and get my feet wet. It's a slippery slope though, and you gotta pay to play.

Miatas are a great car to get into racing with. Cheap to buy and with lots of aftermarket support. A couple of my buddies have Miatas and they are super fun to drive.