PS3s

ive got them on my clio mate 225 on front 235 on back handles like a demon
 
Agree with Woody, used PS2s for years now and when I hasn't been the kind of day to use the PSCups, they're the only tyre I've used on track that doesn't wobble the blocks or turn to grease when hot. Maybe not the longest lasting, but I'd rather replace them twice as often that be in a hedge upside down.

The PS3s are even better, apparently