The front-wheel drive Lucerne is offered in eight trim levels: CX, CX-2, CXL, CXL Special Edition, CXL-3, CXL-4, CXL-5 and Super. For 2009, the CX and CXL variants are equipped with a new, more powerful 227-hp 3.9-liter V6 engine, while the Super retains its 292-hp 4.6-liter Northstar V8; both engines are mated to a four-speed automatic transmission. All CX and CXL trim levels are outfitted with 17-inch alloy wheels, air conditioning, satellite radio and Bluetooth wireless connectivity, while additional trim-dependent standard features include dual-zone automatic climate control, leather upholstery, heated front seats and a heated steering wheel. The Super is further equipped with an adaptive sport-tuned suspension with Magnetic Ride Control, 18-inch alloy wheels and a 6-disc CD changer, as well as exclusive interior trim elements. Safety features found on every Lucerne include traction control, 4-wheel anti-lock brakes, front side-impact airbags, overhead curtain airbags for front and rear passengers, a tire pressure monitoring system and OnStar service. Other trim-specific safety enhancements include Stabilitrak electronic stability control and Ultrasonic rear parking assist, as well as Lane Departure Warning and Side Blind Zone Alert systems.For 2009, the Buick Lucerne receives a new trim level ordering strategy for standard equipment, along with minor option package adjustments. Additionally, the CXS trim is removed from the model lineup.