I had an Imp as my first car, it had some interesting quirks. Never did find out where the burning steel wool came from that shot out of the exhaust from time to time (I would see it in the rear view mirror at night) but it never seemed to affect anything, though I imagine it disconcerted a few following drivers. Like EdT's dad, I spent a fair bit of time 'repairing' it.

It did demonstrate a tremendous ability to spin one winter's night as I exited a roundabout on the A1 near Stevenage, I think it was 2.5 turns before backwards onto the central reservation. I was lucky there was very little traffic, so got away with just a scare.

Its biggest surprise for me was just after getting it, I couldn't find the fuel filler, which turned out to be under the boot (trunk for USA viewers) lid, ie just above and between the headlights. I don't recall the exact placement of the fuel tank itself, on reflection it may have been the forward crumple zone. Engineering genius.