Coolest car I've been in is a home made (hand made) jeep-like
convertible driven by a native in Cebu (Philipins), its used the
4X4 drive train from a CRV!!! Thats during my diving trip in
Cebu.
Fastest car I'm been driven in is a Boxter S and the most comfy car
is my own ride, BMW 520 
Smallest car is an old mini, my head nearly touching the ceiling
(imagine 5 adult in the car, one sitting on the other !!!) Sigh. .
.. . . the gal sit in front
that is in KL.