Complex sentence: Between March and August 1901, it manufactured two more "Mercedes" models, the 12/16 hp and the 8/11 hp. The "Mercedes" was so successful that the production lines of the DMG ran at full capacity.
Split into simpler sentences: Between March and August 1901, it manufactured two more Mercedes models, the and the. The Mercedes was so successful that the production lines of the DMG ran at full capacity.