Law is allegedly going to change in around 3 years. The tyres will still be legal, just not on a road
I've just bought some TOYO R888's, but Yokohama A048's are supposed to be the bees knees too.
If you want ultimate grip over waer then the reports are that the TOYO's have the edge. If you go for TOYO's go for the medium rated ones (GG).
The A048's will last longer, but I've heard that they are even twitchier in the wet than the TOYO's due to the slightly harder compound.
JonnyC is probably the best man to get an opinion on these, but he chose TOYO's too
Edit:- Just beat me to the 3yr thing Robin