Chameleon. Bought last autumn from a man in Saudi (but his bike was in a house in London!). Took it out on a Sunday club run, and everyone commented on it. Most had seen or heard of them, and some had wondered what they were like to ride. Just happens that the shop/workshop that produces them is only about 20 miles away (Biketobe at Longstanton, near Cambridge). Worth a visit. You'll probably be invited to a coffee while you browse.