Hello Elchgemeinde, Since I am currently informing myself about the installation of a gas system in my S60 is the question of the spare wheel in the air. Furthermore, I need new winter bikes for the cold season. So I got some information about Run Flat tyres, size 205x55x16.Prices are about 20 -30 euros above the normal version. According to my local tyre dealer, I would need a release of Volvo, ABE ?, as well as an air pressure control system. I have not yet asked a question about Volvo Germany. Has anyone gained experience with such a tire? With the SuFu I found only contributions from the years 2007. The development of the tire industry has not stopped… Greetings degeoelch