Joss,
Is that the ‘P Zero’ Rossos as found OE on some Porsche’s? If so I hope they’re better than the ‘P Zero’ Asimmetrico that are on my wife’s Lotus Elise I’ll be changing those in the next week or 2 for Yokohama’s.
I often look to see what tires Porsche Drivers use as their demands on tires are close to those of a Skyline.
It’s worth noting that Porsche drivers that use their cars daily seem to stick with the P Zero’s but those that use their car’s for track days go for the more hard core performance tires such as Goodyear F1’s, Bridgestone SO3’s, etc.
Paul.