Showroom Spec Miata
The Mazda Spec Miata represents purpose-built racing specification featuring various Mazda MX-5 Miata generations with 1.6-liter engines (1990-1993) at 2275-pound minimum race weight or 1.8-liter engines (1994-2005) at 2400-2450-pound minimum weight depending on generation through largely-stock engine specifications with specific rulebook tolerances, five-speed manual transmission, and rear-wheel-drive with mandated Hoosier SM7.5 dry racing tires on 15x7-inch wheels weighing minimum 13 pounds representing most popular road-racing class in North America with comprehensive technical regulations ensuring cost-controlled competitive racing through controlled modifications and specification components.
Spec Miata established mid-1990s became largest road-racing class in SCCA and NASA competition with thousands of registered competitors establishing definitive amateur racing platform through Miata reliability, low operating costs, and close competition. Class rules mandate minimal modifications preserving near-showroom specification with controlled suspension, brake, and aerodynamic components ensuring driver skill determines results rather than equipment expenditure. Showroom Spec Miata represents entry-level specification with additional restrictions maintaining closest-to-stock configuration serving as accessible racing entry point. Series success established Spec Miata as definitive grassroots racing category with exceptional competition depth, national championship events, and comprehensive support infrastructure representing affordable professional-quality racing with characteristic Miata handling balance and reliability throughout extensive amateur and professional competition history.