I don’t think I’ve ever seen an approved used Porsche with Kumho tyres to be honest, and in the past you had to have the correct ‘N’ rated tyres as per the warranty T&Cs (although this may have recently changed - not sure!)Dont think it would put me off it they were matching / similar wear rate and were the correct load rating for the vehicle , my CLS came from the MD as an AUC with Evergreen ?? rubber and i never had an issue with them or felt them underperforming whilst i owned the vehicle.
As with most things there has to be a sensible compromise , a set of £100 ditchfinders or "part worn" on a hefty SUV no way , a set of £500 ultra performance tyres on a "daily" 20 mph commute vehicle seems a tad overkill. I am only going to Morrisons for a pint of milk not attacking the Nürburgring corkscrew in a GT3RS.
Been looking at Continental SC6 which come in at £1250 , fitted, for the set which may be an option.
Will keep my options open as they wont be required for a few months yet plus it is due an interim oil change before then , which i will probably do myself due to me wanting to be able to sit down , something that is a bit uncomfortable doing after a visit to the main dealer.
K
All I was trying to suggest is that I don’t think I’m unique in being put off by sub-standard tyres on a premium/sports type vehicle.