They should have nationalized GM, retooled production around the Volt almost exclusively, and shuttered the CAFE light truck loophole. Let Chrysler and Ford go bankrupt and fail, and provide affordable and efficient small cars to Americans at cost.
The Cash 4 Clunkers program would have made significantly more sense if it had been about replacing old and inefficient large vehicles with an efficient single model fleet of Plug-in Hybrids, instead of just letting people trade in whatever they had for a massive SUV.