It's been well over a year since Michelin unveiled its take on the future of the tire, the airless Tweel. The odd-looking invention pairs a replaceable outer rubber layer with a central alloy hub joined by polyurethane ribs. Judging by this video, it would appear that the tire manufacturer is continuing to develop its concept, testing it on a variety of vehicles in a number of different environments. Click on the link to get a glimpse of what might just be in your automotive future.
[Sources: FreshCreation.nl; Michelin]
(Appreciate the tip, Martijn)