I've been racing a ITA/7 RX7 for several years and am contemplating a different class. What are everyone's pros/cons on Spec. Miata vs. ITS RX7? The competitiveness and car equality of Spec. Miata is appealing to me, but the rules are somewhat limiting from a technical preparation viewpoint. The 2nd Gen. RX7's are nice, but the pro-built cars raise the cost levels of being competitive.