Edward Niedermeyer's op-ed against the Volt from a few days back is the most damning to date. Money quote:
Quantifying just how much taxpayer money will have been wasted on the hastily developed Volt is no easy feat. Start with the $50 billion bailout (without which none of this would have been necessary), add $240 million in Energy Department grants doled out to G.M. last summer, $150 million in federal money to the Volt’s Korean battery supplier, up to $1.5 billion in tax breaks for purchasers and other consumer incentives, and some significant portion of the $14 billion loan G.M. got in 2008 for “retooling” its plants, and you’ve got some idea of how much taxpayer cash is built into every Volt.
Cohn defends the Volt by mostly sidestepping the above criticism. His bottom line:
Could the Volt still turn into a boondoggle? Absolutely. But, right now, it's wrong to assume it will be.