There is a dedicated wheels and tires section in this forum. You might post there.

I've heard there's a considerable difference between the H speed rated MXV4 and the V speed rated MXV4. Considerable price difference too. At the other end of the cost scale, I've heard good things about the Kumho 716 even for cars with S-class heft.

Sixto
95 S420
87 300SDL