Complex sentence: The Plus 4 arrived in September 1974 and was an attempt to move a few of the slow-selling four-cylinder model, while the G-Pak of February 1975 received the 3.3 litre inline-six.
Split into simpler sentences: The Plus 4 arrived in September 1974 and was an attempt to move a few more of the slow-selling four-cylinder model. The G-Pak, first seen in February 1975, received the 3.3 litre inline-six.