Original sentence: The last Pontiac ever manufactured, a 2010 G6, was built in early 2010 when GM restarted the Orion Assembly Line to manufacture one final 2010 Pontiac G6
Edited sentence: The last Pontiac ever manufactured, a 2010 G6, was built in early 2010 when GM restarted the Orion Assembly Line to manufacture one final 2010 Pontiac G6, after the earlier G6 line at Orion and the Wave/G3 line in San Luis Potosi were shut down in November and December, 2009 respectively.This was most likely done purposely so GM could show that the final Pontiac ever manufactured (and the only one ever manufactured in 2010) was at an American plant