The 2007 Buick Lucerne is offered in CX, CXL, and CXS. The CX comes with a 3.8-liter V6, four-speed automatic transmission, cloth seats for five people, and 16-inch aluminum wheels. Six-passenger seating is available. It is available with the V6 or a 4.6-liter V8 engine. The CXL upgrades with leather seats, a leather-wrapped steering wheel, and 17-inch painted aluminum wheels. The suspension is tuned a little tighter and includes Airlift rear shocks for automatic level control. In the V8 you will find GM's Magnasteer magnetic assist steering, with a faster ratio; and firms up suspension damping a little further. To help maintain better control in adverse conditions GM's StabiliTrak electronic stability control system is available as an option. The CXS comes standard with the V8, 18-inch wheels, StabiliTrak, Magnasteer, and Magnetic Ride Control for the best handling available in a Lucerne. It also has upgraded leather seats.The Buick Lucerne is a carryover from 2006.