Hi, I had an S1 AX with the 1.124cc 60hp engine. Wonderful little car. Very practical, very lively, very economical, you can "race" it if you like and it will happily follow no matter the terrain, and comfort levels super-adequate for city driving -the S2 with restyled dash even better-. It was, in my view, very ahead of its time with its focus on a wheight-reduction effort. They wheighted a bit more than 600kgs! Sadly it was born in the era when the German industry started setting the trend of making heavier and heavier cars, so you now have a Polo that needs about 150hp to move fast, Golfs that need triple turbos -at least- to break the 10" on the 0-60
, and a Peugeot 2007 that weights 1 tonne with 3m73cms of length...
The Twingo is another clever little car, similarly simple and economical, and very spacious for its size, but, while being absolutely safe, its driving abilities are lower than the AX or the 106 -not responding really well to extreme driving-. But excellent for the city.
regards
George