I like the color combination. 13" wheels look great on a Miata. It's hard to lower too much without messing with the fenders, running insane negative camber, and/or severely limiting suspension travel. Most every one I know with 13x8 Rota RB have the Tein Flex or similar coilover. They lower it into the weeds and dramatically increase the spring and damping rates for auto-x. I kinda dig the bigger sidewall but I also like the really short sidewall of racing tires, too.