Its confusing that the names are so similar between PS4 and PS4S. It would be so easy for someone to read a recommendation for the "4S", and end up buying the "4" from the tire shop.
Anyway I have a set of the new PS4 on my E90. They are 235/45/17. I have only had them for a few days so far. So far its been a big disappointment. I find these tires have very, very soft sidewalls. I previously thought the PSS on my E82 was disappointing in road feel, but the PS4 are so soft that I could not believe it. After driving on the PS4 I start to reconsider my opinion of the PSS. PSS are not available in 17" in my country, so maybe we are being screwed.
The trouble is that I got used to Goodyear F1 Asymmetric that are about 7 years old. These tires have properly firm sidewalls. It has become a lot more difficult to buy tires like that because most current designs are based on minimising rolling resistance, unless we buy an outright sports tire.
Last edited by John_01; 11-01-2016 at 03:29 PM..
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