I,ve been using the new Toyo R1R 195/50/15 and 205/50/15. Have now done 3k on them. Did have 888's before but got fed up with how quickly they wore out. The R1R has the same grip as the 888's on the road ( don't know about track use as my car is only road use) plus it grips from cold. The big gain is in the wet, they are awesome. I drove through France early this year in dreadful rain plus standing water etc and was able to cruise on the autoroute at 75-80 no probs, no way could I have done that on 888's. They also wear far better, a wear rating of 140 compared to 100 on the 888,s and have 6.5mm tread compared to 5mm on 888,s. A set cost me £360 incl valves balance and vat. Basically very pleased and will not be going back to 13" rims again.