Surveys have shown that people who do tend to be older, richer, better educated, and more technologically savvy. They also tend to consume organic food, yogurt, and decaffeinated coffee and are predominantly Democrats and independents
Here are some well-known people who have bought hybrid cars:
Kevin Bacon, Ed Begley Jr., Jack Black, Billy Crystal, Ted Danson, Johnny Depp, Cameron Diaz, Leonard DiCaprio, Ellen DeGeneres, Kirk Douglas, David Duchovny, Kirsten Dunst, Larry David, Will Ferrell, Harrison Ford, Tom Hanks, Woody Harrelson, Salma Hayek, Arianna Huffington, Billy Joel, Bill Maher, Donna Mills, Jack Nicholson, Ed Norton, Donny Osmond, Brad Pitt, Prince Charles, Robert Reiner, Tim Robbins, Susan Sarandon, Robin Williams, Dr. Oliver Sachs, Alicia Silverstone, Meryl Streep, Sting, Dr. Andrew Weil.
Sources: hybridCARS; “The Essential Hybrid Car Handbook,” by Nick Yost
(The Lyons Press)