Regal CXL Turbo, ECOTEC 2.0L I4 SIDI VVT DOHC, 6-Speed, Leather-Appointed Seat Trim, and Power Tilt-Sliding Sunroof w/Sunshade. One-owner! If you are looking for a one-owner car, try this wonderful 2011 Buick Regal and rest assured knowing that the previous owner took outstanding care of it. New Car Test Drive said, ''...We found the Regal very quiet, with a very smooth ride, a welcome respite on miserable commutes and a good partner for cross-country drives. It may be the quietest car in its class. Mix in a solid thud to the doors, tactile clicks to the controls and a structure safe and secure, and the Regal is a well-rounded package...'' The precision-tuned ECOTEC 2.0L I4 SIDI VVT DOHC powerhouse delivers substantial horsepower and torque to get you where you need to go...and fast!