1966 - 1968 Madero
The only spaceframe chassis ADM has ever produced. The original madero was launched in 1950 and was aimed to be a simple small car with just a sporty touch. Then in 1960 it was transformed in sort of a light sport car, with the Meliora Perenne as the closest competitor. By 1966, the car received a facelift and a re-worked engineering. But sadly, that didn’t make it faster. By that time, the car was quite slow compared to other cars, and when the new version kept the old engine, it pretty much kill the model. The demand was low, and not much cars were sold (thankfully, not many were produced either) and it only remained in production for 2 years.
1966 price: $2,321