If ever there was an automotive dinosaur in waiting, Hummer was it. After Arnold Schwarzenegger fell in love with the Humvee military car when he saw a convoy of them during movie filming, he persuaded AM General to launch a civilian version in 1992. General Motors bought the Hummer brand in 1998 and introduced smaller H2 and H3 models. But the writing was on the wall for these gas-guzzling monsters when Arnie abandoned his fleet of four Hummers in 2006. The very last Hummer H3 rolled off the line in May 2010.