Totally not arguing the fact that the 13B and 12A can be a reliable motor…but not when you overheat, or detonate or make more than the 120 h.p they came with. Piston motors are where it’s at, even if there outdated at this point. The rotary is great for midgets, bugeye sprites, old elans etc etc very versatile to put into smaller cars. Just dont think they should continue using them in huge overweight sportscars.