Robert Redford is "hypocritical" when it comes to leading a green life - the active environmentalist admits he likes nothing better than driving around in his sports car. Redford has long been an outspoken opponent of global warming, and while he has lived in a house with solar-powered heating for more than 30 years, he still likes to occasionally speed around in a high-performance, gas-guzzling vehicle. The veteran actor/director tells Playboy magazine, "I drive hybrid cars. I've had passive solar heating and wind generation in my Utah home since 1975. I bike and ride horses as much as I can. "But I must say, I do like racing fast cars. It's a hypocritical, weak move on my part. We do what we can. But I've always loved speed. "I love finding a good stretch of road and cutting loose in my Porsche. That's all I want to say about that."