A top Beverly Hills cosmetic surgeon says he used fat he removed from patients in liposuction operations to power his 'green' 4x4 car.U.S. authorities have launched an inquiry into claims made by Dr Alan Bittner that the fat he had sucked out of patients in liposuction operations was turned into biodiesel.Bittner wrote on his website: 'The vast majority of my patients request that I use their fat for fuel -- and I have more fat than I can use.'Not only do they get to lose their love handles or chubby belly, but they get to take part in saving...