It looks like Cash for Clunkers didn't have a lasting affect

From Market Market Here

slumped 24.9% to 185,176 vehicles from 246,479 in August 2009. "Last year's Cash for Clunkers program spiked industry sales in 2009, so results this August were not surprisingly a bit mixed," 

Exit Question: How long can GM make it without major pension reform of it's employees?