In a showmano a showmano challenge, retiring GM Vice-Chairman and all-around automotive superhero Bob Lutz brought the 2011 Chevy Volt onstage on the David Letterman Show for the express purpose of presenting an adult response to Elon Musk's immature sniping during his own Letterman appearance a few weeks ago. That night, the Tesla CEO misrepresented the Volt, and coaxed Letterman into inaccurately deriding the soon-to-come GM plug-in hybrid.

Maximum Bob and the car that will be his greatest legacy – the Volt – stole the show and Letterman’s automotive heart. Best of all, Lutz discussed GM’s recent EV history, including the fact that there was no premeditated murder of the notorious EV-1, and how GM – should it survive – will leapfrog to the front of the Electric Era with a real 100-mpg plug-in (PHEV) car that normal people can own. WATCH THE VIDEO: