Reply to "Question about mixing front/rear tires"

As I say from time to time both here and on the POCA Forum, high speed-rated 15" tires ARE available. They are not available in every size and they are never cheap, but Pirelli for one does make them in small batches. Larry Stock at PPC-Carson City has a pair of brand new 335-35x 15 Pirellis W-rated (168 mph continuous) P7-Rs in stock NOW; I saw them yesterday. Credit cards accepted. I think he also has a pair of 5-yr-old 275-55x 15s.
Pirelli has a short-run tire plant in Izmir, Turkey that occasionally turns out 'Legacy' tires. Problem is, its a small plant that also makes ALL the F-1 tires for all the Grand Prix race teams.... guess what gets priority? Larry orders a dozen 295-15x 15s speed rated from Pirelli-Europe. 3 months later he gets two tires. He reorders; he gets one- or maybe none. Or a different size altogether. He has a waiting list of customers 4 years long.
The British Lamborghini Club and the Swedish Pantera Club went in jointly on 100 275-55x 15s (W-rated) a decade ago, and Pirelli built them 100 tires, which the two clubs split and sold to their members. I got 4; Jerry Brubaker in Ohio got 4. They definitely exist and they were not cheap especially when freighted in from Sweden....So how bad do you want fast-car tires? Call him for details or to get on the list.