Hmm, I might have posted in the wrong thread. I wrote along similar lines to the OP -
"When I’ve looked at the usual online suppliers (mytyres, blackcircles), most of the tyres mentioned on here don’t actually seem to be available. I thought the Vredestein Sportrac 5 sounded like what I was looking for, but although it’s on the Vredestein website, I’ve really struggled to find them anywhere in 185/60 R14. Goodyear Eagle F1s are no longer available and Michelin PS4s aren’t available in this size. The only Goodyears I see are their EfficientGrip Performance. Khumo PS71s have been mentioned, which I’m not familiar with, but the only Kuhmo tyres I’ve seen advertised are EcoWing ES31. I have seen Dunlop Sport BluResponse .
It seems to me that most of the tyres that are widely available seem more aimed at standard saloon cars rather than a performance tyre for a sports car (albeit one with relatively low power."