My first car, and also my slowest was a 78 Nissan/Datsun Cheery 100a.
Powered by an Austin A series motor built under license by Nissan, it had a massive 58hp from 998cc. Single carb, 4 speed gear box, it arrived with out a radio as a gift from my Grandmother.
It was so small and under powered I even got it stuck in the gravel car park the first time I drove it to school.
Top speed on a flat road was about 120kph, but did manage 140kph down a hill with all 8 valves bouncing wide open.
The suspension set up was nice, but it's agility was let down by 155, 70R 13 tyres. I used to be able to throw it at a corner then work it sideways around the corner changing between over steer and under steer, all while doing about 40kph.
Possibly one of the best worst cars I've ever owned though, everything happened in slow motion, but there was no power steering or assisted brakes to blunt response, and the very tight suspension combined with small tires and curb weight of well under 1,000kgs made it very responsive to drive.
I learned a lot about car control, all at speeds to slow to do myself any damage.
Then I learned about preserving momentum, and managed some point to point times in it that I have a hard time matching in much faster cars.