These have been in development for a very long time but it might be getting closer...

http://www.leftinsmoke.com/index.php?params=media/334/The-New-Airless-Tire-from-Michelin/

Theyre a detailers dream, tbh.

wouldnt catch on with two wheelers at all i dont think,

but apart from looking plain awful to fit to wheels they could be the new thing.

anyone else notice they look to be a bit wider than normal tyres?
presume its so the struts dont get over stressed.