Complex sentence: Since 1975 the truck models resulting from this cooperation would be produced by Saviem and later Renault even until 2001 and also would be sold on the North American market as the "Mack Mid-Liner" or "Manager".
Split into simpler sentences: Since 1975 the truck models resulting from this cooperation were built by Saviem and later Renault, even until 2001. They were also sold on the North American market as the "Mack Mid-Liner" or "Manager".