Complex sentence: The straight-six 3444 cc engine was carried over from the W03, delivering 70 PS (51 kW) to the rear wheels through a three-speed gear box controlled via a centrally mounted lever.
Split into simpler sentences: The straight-six 3444 cc engine was also carried over from the predecessor model. In this application an output of 70 PS (51 kW) was claimed, delivered to the rear wheels through a three-speed gear box controlled through a centrally mounted lever.