Complex sentence: It had a relatively short time of existence, succeeded in 70% of the vehicles produced in cooperation with subcontractors throughout Yugoslavia, expressed numerically, it is about 15,000 vehicles placed on domestic and foreign markets.
Split into simpler sentences: It had a relatively short time of existence, succeeded in 70% of the vehicles it produced in cooperation with subcontractors throughout Yugoslavia. Expressed numerically, it was about 15,000 vehicles, placed on domestic and foreign markets.