A funky car I see regularly on my commute to Tauranga is a BMW Isetta.
The thing looks a hard case, cruising along the road, obviously going flat knackers (probably about 70kmph, with about 75% of the car on the shoulder side of the white line)
Bugger driving it on a windy day though!
(for those not in the know ... it is a "bubble car"
http://www.bmwworld.com/models/vintage/isetta.htm)