Socialite Paris Hilton truly is a reformed woman - she's going green to save the environment. The Simple Life star - who promised to change her lifestyle after her recent stint in jail following a 2006 drink-driving arrest - has traded in her Range Rover SUV (Sports Utility Vehicle) in favour of a Ford hybrid car - after she was given a free model by the car's manufacturers. And Hilton is urging her fans to follow suit. She says, "Driving hybrid cars is the new way to go. Anyone can do it, no matter how old."