Dont really think the widest possible tyre would be great on a wet track either ? Bound to want to aquaplane quite easily unless it really was a properly cut wet tyre. What sort of car, weight etc ?

The Kumho's I had would be virtually bald in 1000 miles, so absolutely useless for the wet, again unless they were heavily re-cut.

Would 15's be a better option ? ( or get 13's and old F1 tyres lol )