All Season Tires
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Of course you can. (What diameter are we talking? The 718 Base could have one of three different diameters ... ).
First, you need to search TireRack by OEM tire size for each axle. Doing this for my 718 Base's 19-inch wheels reveals four UHP A/S tires available for the front (235/40-19) and two for the rear (265/40-19). The problem is that none the four tires available for the front (Dunlop, Goodyear, Pirelli, Yoko) are available for the rear (Continental, Michelin). You may need to vary from one of the two OEM sizes to make it work -- or check with another tire dealer such as Discount Tire.
The question then becomes, why would you want to?
They also won't be N-Spec tires. Whether or not that's important to you is an entirely different topic
Why would you run all-seasons on this car?
#1: They are a compromise in warmer months (anything regularly above 40 degrees)
#2: This is a mid-engined, rear wheel drive sports car, if it's going to see snow, it should most definitely have winter tires. Running all-seasons in the snow in this car, in my opinion, is asking for an incident.
Tire rack won't sell you all-seasons for this car because the speed limiter is set from the factory to exceed most all-season tires' speed ratings, and the car does not come with all-seasons from the factory as far as I'm aware.
To bypass that, you'll need to manually search for a size and their "guaranteed fit" won't apply.
#1: They are a compromise in warmer months (anything regularly above 40 degrees)
#2: This is a mid-engined, rear wheel drive sports car, if it's going to see snow, it should most definitely have winter tires. Running all-seasons in the snow in this car, in my opinion, is asking for an incident.
Tire rack won't sell you all-seasons for this car because the speed limiter is set from the factory to exceed most all-season tires' speed ratings, and the car does not come with all-seasons from the factory as far as I'm aware.
To bypass that, you'll need to manually search for a size and their "guaranteed fit" won't apply.
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147 Posts
I will be storing the car in my garage for the winter and thought all season tires would allow me to extend the time I can drive the car (allow me to drive it in lower temps before there is snow).
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179 Posts
I don't know. Remember that, as a mid-engine rear-wheel drive car it's a lot better in snow than front engine rear-wheel drive. I haven't had the 718 long enough yet to try it in snow but my old MR2 was excellent in snow - and that was on Bridgstone Potenzas summer tyres. The worst car I ever had in snow was a Mercedes SL - completely undriveable without winter tyres. And getting winter tyres can be tricky because, in the UK anyway, they have to have the correct speed rating (and many of these tyres aren't made in the higher speed ratings). On the Merc I had buy a new set of smaller wheels.
Now that I have my CGTS, and it's winter but there's no snow on the ground, I'm definitely seeing a reason for having a set of high-performance all-season tires. 
I won't drive my Cayman in the snow, but around here we get long stretches where it's cold (highs 30-40° F) without the snow. Something like the Michelin Pilot Sport A/S 3+ would be just the ticket for this scenario when I probably shouldn't be running the Michelin Pilot Sport 4Ses.
I won't drive my Cayman in the snow, but around here we get long stretches where it's cold (highs 30-40° F) without the snow. Something like the Michelin Pilot Sport A/S 3+ would be just the ticket for this scenario when I probably shouldn't be running the Michelin Pilot Sport 4Ses.
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22 Posts
It’s obvious dedicated snows are better.
In upstate ny in mid winter the roads are bare 80 % of the time.
I have a backup car for snow, so all season tires on the Cayman make it good to drive most of the winter without the hassle of switching wheels/tires twice a year. Plus I hate driving beautiful snows 400 miles round trip to buffalo on the Thruway when its sunny and 45 If only Michelin made cross climate 2 AS tires to fit my base Cayman
as for liability I’m a personal injury auto accident lawyer for 40 years and have never seen a subtle tire issue like this even mentioned much less actually result in the imposition of liability or even a threat of insurance coverage loss
I may not know much about tires but I know about auto liability
In upstate ny in mid winter the roads are bare 80 % of the time.
I have a backup car for snow, so all season tires on the Cayman make it good to drive most of the winter without the hassle of switching wheels/tires twice a year. Plus I hate driving beautiful snows 400 miles round trip to buffalo on the Thruway when its sunny and 45 If only Michelin made cross climate 2 AS tires to fit my base Cayman
as for liability I’m a personal injury auto accident lawyer for 40 years and have never seen a subtle tire issue like this even mentioned much less actually result in the imposition of liability or even a threat of insurance coverage loss
I may not know much about tires but I know about auto liability
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