Only the first Tempo Matador model had a VW engine. VW soon stopped selling engines to Tempo, because they didn't want to have a rival to their Typ 2 van. So, Tempo changed to Heinkel engines. But those weren't too reliable. So they changed to Austin engines, later (already under the flag of Hanomag) accompanied by Diesel engines, first Hanomag, later Mercedes-Benz. By the way, the Austin engines were still fitted, when the Tempos had already become Mercedes-Benz models!