I don't have one at the moment, but I've had three in the past...
JC Midge, from John Cowperthwaite in Sheffield. Original design was based on a Triumph Dolomite, but I ended up with the first customer Ford-based car. One or two little problems: the steering column had to go through the engine block as designed, and the reversed Cortina front subframe meant it had permanent bump oversteer. I basically threw away everything except the chassis and the body plans (aluminium over wood) and started from scratch.
(Not my car, couldn't find a picture - pre electric camera days).
Then an Onyx Firefly. Mine used to pop up (from after I sold it) on a google image search, but you'll have to make do with this pic).
Was supposed to be a 750 or 1000 panda engine, but that got boring so I stuffed a 1.3 Brazil engine in for amusement and doubled the horsepower. That was a car that handled incredibly well, but it wasn't terribly waterproof. Some chap tipped a bag of cement powder in it one night, which tickled the copper who came to investigate it...
Most recent was the quantum 20VT, sadly gone to the great breakers in the sky due to delamination of the supporting fibreglass around the rear suspension causing a random sudden leap to the ditch when booting it.
Before it got the 20VT engine:
and after the feeble Ford XR2 was thrown out...
It was a squeeze getting that engine in there; this still had lots of bits to add.