The only way is to try them out and hear from the horses mouth, not what Porsche or BMW or whatever do because they probably have a nice deal in place with certain manufacturers.
BMW, AMG-Merc, and Audi, and the rest may do 'deals' - but Porsche categorially do not. And even on Audis AMGs and Beemers, their 'range' of OEM tyres are generally very high spec, high quality, high performance tyres - from leading brands. Which is why Michelin PS2, Continental CSC3, Bridgestone RE050A, Pirelli P-Zero Rosso, and even Dunlop SportMaxx GT (a million times better than the standard SportMaxx) - are the only ones available. Now, Goodyear own Dunlop, and Goodyear also claim to be a 'higher' brand than Dunlop - and being as Dunlop are already on the 'factory approved' lists, why arn't Goodyear? Afterall, Goodyear invariably are ALWAYS cheaper than Michelin and Continental, and lower-spec Goodyear tyres are also factory fitted on lesser models.
Like I have always said, and has also been confirmed by the likes of Evo, the Goodyear F1 Asymmetric has some serious flaws - which verge on the dangerous.
If an individual wishes to 'put up' with those flaws, then fine - but when peeps ask for advice, I think it is vital that the WHOLE TRUTH is aired, especially when tyres have a potentially dangerous flaw, which is then acknowledged by Goodyear, but who then do fcuk all about resolving the issues. Michelin certainly don't behave like that - and their 'customer service' is a million times better than either Goodyear or Dunlop - and I can report that from a very personal experience!
Going back to Porsche, they are ONLY interested in what makes their cars handle the best - and if that other German tyre company Fulda could make a tyre to work on a Porsche, or indeed any other company, including the likes of Toyo or Yokohama, then they too would be a factory supplied option, alongside the Mich PS2 and the Conti SportContact 3s. But Porsche arn't interested at all in 'dumbing down' their cars with inferior components to save a few Euros here and there.
But also some people like different kinds of handling from their car which will affect their tyre choice.
Agreed. But just because some 'rice burner drifter' likes a tyre which rapibly brakes away - that categorically does NOT mean they are better than a tyre which provides more overall grip.
And I also accept that certain tyres perform well on certain types of cars - BL/Rover always seem to work far better on Dunlops than Michelins, and French cars of the 1970s always seemed to work best on Kleber, and Fiats seemed to like Pirelli Cinturatos - but then that was soley down to 'buying from local suppliers', and then setting up their cars to suit the tyres.
