Thanks for the reply and info OneTwenty. It could well be that I already have the best tyre for my car in the PS4 for 18 inch wheels. Even though the PS4 is not that dynamic to drive what we all really want is grip when it matters and the PS4 does that whether wet or dry. I do think the Conti SportContact 7 would be better and more fun on the front (tested on rwd Supra) but it's not available in 245/35 R18 so may as well forget it. I'll post Michelin's reply to my question about the best tyre for my car. I would laugh if they suggest the PS5!One of the reasons I went for the PS5 was because of that review, but I also thought exactly the same at the time - how can the tyre last so much longer without affecting grip? Well it does affect grip in my experience.
On the PS4 I had a really hard time getting the car to slide or lose traction in the wet, even when they only had 2mm of tread left!! But the PS5 are rubbish in comparison - I can no longer just put my foot down when it's raining as it loses traction just as badly as when I had the MPSS fitted. Yesterday when it was raining and I was late I was pushing hard on the slip road up to the motorway and it was just fish tailing all the way up - even on the carriageway it was flashing the TC when I tried to boot it. The PS4 previously fitted never ever did that.
By far the worse tyre I've run on the 240 so far and when I have to swap next year (or sooner if I can afford to!!), I think I will go to the Good Year Asym 6 if I can't get PS4 any more. I also run PS4 on our E91 and they last 20k miles at least on that car and give endless grip with no issues. They do only last 12k miles on my 240 though but that's down to how I drive probably.