it's got 195/50/15s on there now, and that's apparently about right- I can get F1's for $190ea fitted and balanced, which doent sound too bad. The other tyre recommended for an MR2 are Toyo Proxes T1-R, which are more of a track day tyre with stiffer sidewalls. I think I'd prefer the more pliable sidewalls of the F1's for a gentler breakaway... for now. I dont expect tyres to last long.