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Re:Hyundai and Kia Develop Shape Memory Alloy Integrated Sno... by ChrisMarshallNY on Tuesday December 12, 2023 @09:27AM (#38612497)
I have a friend that has a Mercedes S580 (nice car).

They don't have spare tires. Instead, they have some kind of tire that continues to operate in a degraded mode, until they get to a dealer, who swaps out the flat for a new tire.

He blew a tire, in rural Upstate New York.

In today's lesson, we learn that upstate dealers don't stock S580 tires, and he's forced to leave his car that costs as much as some people's houses, at a podunk dealership, while a buddy gives him a ride.

Then, a week later, the dealer insists that he drive 400 miles, to pick up the car.

I believe that he did some screaming to Mercedes corporate, and got them to drive it down to Long Island.

For a flat tire.

Re:Hyundai and Kia Develop Shape Memory Alloy Integrated Sno... by argiopetech on Tuesday December 12, 2023 @09:48AM (#38612817)
These will be "run flat" tires. They're to get you off the road to a safe location where a rollback (flat bed tow truck) can pick you up and take you to a tire shop.

There's nothing special about the wheels, so you can mount an appropriately sized "regular" tire and continue on your way. Worth the $250 to get on your way, I think.

I'd guess any non-dealer tire shop would have just sold your friend the tire and sent him on his way.