I stumbled across alittle more info about the derossi 650,the brothers Jorge ands carlos derossi embarked on the design and construction of an entirely national car.things got difficult and after two units and had to abandon the project because of lack of resources and economic support,since at the time the argentine automotive industry did not seem to have a promising future.The Derossi 650 was made of fiberglass,four-seater,with two-cylinder engine,650cc,30 hp,and a top speed of 105 km/h.,the rear lights with aeronautical reminiscences and front lights flanking a front trunk to the best Porsche style. it was a pity it never went beyond two-units.