I don’t know how useful it would be around the suburbs of South London, and getting it on to a bus might prove interesting, but the schoolboy in me wants one of these babies! It’s a tracked, 29 horsepower vehicle which you reverse your normal chair into. A safety bar then comes down in front of you. As reported here it goes over all terrain and has a top speed of 17mph. It was specifically designed for wheelchair users, particularly farmers who have become disabled and want to retain their way of life; but I can’t help but imagine how awesome it would be bombing around these streets in one.