I'll give you an off beat one. A Smart Fourtwo Brabus Convertible

Just as 'zany', you can get the roof down (on the move at up to 80mph faster than this you can put it down but not back up), can be hustled along quite well (surprisingly well to almost every other road user I've had an indicated 115mph on a private road) performs well as standard (bhp/ton on a par with a Mini Cooper) can be tuned for an extra 20% very easily, cheap to run (tax and insurance and mpg). Brabus also well equipped with stitched leather, touchscreen sat nav, Bluetooth, heated seats etc.
Best of all it's so easy to get in and out of and you get a good view out, due to the high seatin position, and it still puts a smile on your face, it really does. Oh and EVERY space is a parking space due to the size and plastic doors no parking dings given or taken

Bad points are the gearbox takes a bit of getting used to but once you have, it's absolutely one and you don't notice it (Brabus has the paddles and whilst good thy are very slow but you soon work with it and forget it's cumbersome). Can be a bit crashy over potholes.