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. A new MX-5 Cup (professional class) based on the ND series MX-5 costs $80,000 turnkey, and champions of the national series can win over $200,000 to advance up the motorsport ladder. In August 2019, Mazda Motorsports and Winding Road Racing announced Spec MX-5, a racing class structure based around the MX-5 NC that is designed to be an affordable, tech-able, reliable and fun-to-drive option for club racers. Race cars in the division will feature Roush Performance cylinder heads, Penske Racing shocks, Eibach springs and sway bars, Pagid brake pads, Toyo tires, and more, and will have a curb weight of . Spec MX-5 will have select events starting in 2020. Class rules This section is not an exhaustive set of rules; it is intended to give an idea of the preparation level of the cars in this class. Spec Miatas used a specific Bilstein shock with an adjustable coil-over suspension with Eibach springs and adjustable front and rear sway bars. Beginning in 2019 the Bilstein shock is being phased out in favor of a Penske shock. Top mounts are different but otherwise the new setup retains the coilover sleeve and spring from the previous Bilstein setup. Depending on the club, Toyo or Hoosier tires are specified. For SCCA SM, the Hoosier SM7.5 is the dry tire and SMW (SM Wet) is the wet tire. For NASA, the Toyo RR is the dry tire and RA-1 is the wet tire. (205/50R15) is the spec tire size. Hoosier Tires will provide the spec tire for all National SCCA Events. The wheel size is fixed at 15 × 7, with the wheels weighing no less than 13 pounds. Cars with 1.6 liter engines (1990-1993) have a race weight of 2275 pounds (1057 kg) and first generation cars with a 1.8 liter displacement engine (1994-1997) have a minimum race weight of 2400 pounds. "NB1 Miatas" (1999-2000) have a minimum weight of 2400 pounds. "NB2 Miatas (2001-2005) have a minimum weight of 2425. Overbore engines are a 15 lb addition. The