In celebration of the new Bad Detectives song 'Bubble Car' (see below) I thought I'd link to the Wiki on these slices of 'Luftwaffe technology' - I rode in one once around Frome - pretty scary but exhilarating - wouldn't it be great if everyone drove them? Pictured is a Messerschmitt. I want one. There's a 1963 Heinkel Trojan on ebay for about 3,000 pounds - anyone want to buy me one?
There's a bubble car museum - maybe the BDs ought to send them their cd.
I suppose the American equivalent might be the Davis three wheeler - that's a pretty whacky vehicle... lovely cartoon here. Wiki on Micro cars