I recently had the Michelin Pilot All Season 4 installed on my FRS as my new daily tire in 225/45/17. Costco had a good price and I was able to get them installed for $490 out the door.
I'll share my impressions of them after 2,500 miles, including one road trip to SC and back. I've seen warm weather, cold weather, light and heavy snow, and heavy downpours in these tires. By way of reference I've owned quite a variety of tires on my cars, including Dunlop ZII / ZIII, RT660 Azenis, Continental DWS 06, Pirelli P Zero Nero GT, and Firehawk Indy 500.
What amazes me about the Michelins is that they do everything fairly well, I'll try to break down how they fare in specific conditions below:
- Warmer Temperatures - In warmer temperatures (e.g., 50+ Fahrenheit), they have pretty good maximal grip for an all season tire. FAR better than my DWS 06 that they replace. Turn in isn't as crisp as a dedicated summer tire, and road noise is a lot quieter than summer tires. I would venture to say that at warm temperatures their maximal lateral grip is probably as good as the Firehawk Indy 500s, or nearly as good. They are absolutely nowhere near grip/performance of a 200TW summer tire, but that is to be expected. I am not a fan of the Pirellis, the Michelins IMO perform better than those P Zero Nero GT in just about every category (I got them as a cheap set of summer dailies to keep mileage off my race tires).
- Colder Temperatures - below 50F is where these tires shine IMO. You can feel the sidewall stiffen up at the colder temperatures, and turn in vastly improves and response is good. Best way I can describe them is they have a lot of confidence inspiring characteristics at cold temperatures, at colder temps they really feel at their best and behave how a good summer tire behaves in the summer.
- Rain - Had these in a torrential downpour driving on the interstate - they handle rain like a champ. I gave a few hard stops trying to make the car get squirrely and it handled it well. I've also noticed when trying to kick out the rear end in cold/rainy temps, the Michelins still "stick". Can't recommend these enough for colder temps and rainy conditions
- Snow - We had a 14" snowstorm in my township a few weeks ago. Took it as an opportunity to try out these Michelins. At lighter snow (<3") they did very well, better than I expected. Not as good as the DWS06 but still incredibly well for how well these tires do in warmer temps. They can handle the lighter stuff just fine, but I noticed during heavier snow when things start to get compacted, they just don't perform as well. But I would not hesitate to drive these in a lighter snowstorm at least during fresh/new snowfall.
If I had to find a negative its that gas mileage seems to really suffer with these tires, at least compared to the DWS 06. Those tires are well known to have very good MPG. I would get 38/39mpg in my Scion on the highway with those tires. But I get about 35/36 on the Michelins. Others have reported similar dropoff in mileage.
TL;DR: Amazing all around tire. Summer performance approaches that of some summer tires, cold/wet weather performance is where they shine. Very impressed. Will continue to use this model/brand as my daily moving forward