A mid-green SAAB with a two stroke engine. You put a can of oil in the fuel tank and then added 4 gallons of petrol.
I had lots of fun at petrol stations when other drivers saw me open my fuel tank and put the oil in. Lots of men getting very concerned, until I explained.
I had several SAABS. One of them had a loose battery terminal that would never stay connected and I would stall at traffic lights, immediately jump out throw open the bonnet dissapear under it for about ten seconds, shut it down jump back into the car and power away as the lights went green.
Then there was the fuse box in the passenger foot well. Whenever any of the electrics failed (and it was when, not if), I would dive into the passenger well, find the relevant fuse, give the end a good scratch, put it back in and drive away with everything working.
I did love my little SAABS.