Helmut Hartung, an engineer who moved to Andorra in 1971 and ran a company making chemical products and machinery parts, began developing an off-road-capable, three-seat sports car in 1973, working out of Encamp, Andorra. The car later took the name Sparta, chosen, in Hartung's words, because the vehicle was a bit crude by nature. An early version was demonstrated in 1977 to show that a bolted lightweight-alloy tube-frame chassis, built…
