Seems that Condoleezza Rice is a fan too.
U.S. Secretary of State Condoleezza Rice, left, gives a thumbs up as she prepares to take a test ride on the 2007 Tesla Roadster electric car along with Tesla sales manager Tom O'Leary, right, during a demonstration by Tesla Motors in Moffett Field, California.
http://www.state.gov/secretary/rm/2007/may/85485.htm