is there really any need for that on a v50?
advan 105s, uniroyal rs3, eagle f1s etc..
Yes. Hard wearing is what he wants. As said above, the likes of rainsport3's will be done in around 10k if your lucky. PS4's might last 2 or 3 times that. They are not 2 or 3 times more expensive than RS3's, so it's a no brainer with that comparison.
I haven't, personally, found anything concrete about how well the F1 AS3's wear. I need 19's for my new wheels for my A4, but I think PS4S is a bit too far for this car in reality. PS4's would likely just be bought if they were available in my required size. They are not though. I am tempted to go for the F1's, but the reviews I have read put their longevity anywhere from 10k to 15k. I'd expect the PS4S's to do significantly better, but would have hoped for at least 20k out of F1's after my last experience with Goodyears (Excellence RFT's which lasted 44k+).
I have, personally, had good experience with Vredstein tyres. I ran a set on my mapped 335d, and after 16k the rears still had 5mm on them, and the fronts 5.5mm. So I am tempted to try the Vorti's as they have some decent enough reviews about them. But nothing concrete on wear rates. But they are only £100 a corner (plus a £40 gift card when buying 4 from Camskill), rather than £160 a corner for PS4S's. So a significant price difference on the set. But then again, if the PS4S's last twice as long, they are not twice as expensive, so still cheaper in the long run. But I just can't shake the feeling that the PS4S would be overkill since its an "80% trackday" tyre, in a lazy, auto, V6. Just completely unnecessary.