I agree 100% with @thefortunes - although the MPSS aren’t offered in the front size, the car performs incredibly with them in the rear. It quiets the ride, while maintaining the same performance. I love them! I’m not sure what the story is regarding SC’s denying non-OEM tires all of a sudden, but I only know my SC here in Dallas regularly installs MPSS for local Roadster owners. Myself and a few other owners have them on our cars.