Just had a flat on our C230 Kompressor Sport Sedan and was very curious as to why what looks like a standard rim and tire carries a sticker saying it should not be driven over 50mph. This is not one of those mini-spares, it is 16" vs. the 17" sport rims but the tire height evens it out when on the car.
Our dealer was no help and MBZ USA told me they put the sticker on so people won't drive around on the different rim for very long. I understand the time thing, but could going 65 or 70 cause a problem that doesn't seem obvious?