Opinions on valuing an item.

[circmand]

What do the guys of Top Gear cite as causing a performance loss on run-flats? Do they weight more? Is it something to do with different construction requirements of the sidewalls? I'd never known that run-flats had lower performance characteristics when compared to regular tires.

It is the sport feel when turning, power sliding etc. They often tease that American Car manufacturers and designers are still inaware of turns. A tribute to our straight roads. But when they race cars around the track (they have their own race track) with run flats they often disparage the handling. Given that Nascar hasn't even experimented with run flats I have to figure there is something to it.