R88 $1300
RS3 $1440
RE11 $1400
Hankook V12 $850
Nitto Invo $1030
Hankook wins the price battle easy, but are they any good? I would think of of the list the R888 would be best, but might be scary in the rain. The RS3's are supposed to be really good also, but the most money of the list. Invo seem in the middle. Choices.
The R888s are horrid in the rain. I raced on these for 2 years in Spec Boxster, and the are ok in the dry, but nearly undrivable in the wet. The Toyo RA1 is better in the rain, but a street tire like the PS2 is just as good if not better in the wet.
For a street car, I would personally stay away from any of the DOT race tires like R888, RA1, Hoosiers, MPSCs, etc.