after waiting for a long long time, I finally managed to snare a set of Avons. The grip is phenomenal. There is no way I'd go to 17" or 18's. Ive seen too many guys with the big wheels & super wide tires get totally embarrassed in the curves by a car sporting 15" wheels and relatively "skinny" Avons.
Before the Avons, non period correct 16" wheels ( ugh ! ) :
After:
the inspiration:
Z.