The center stack is located high for easy access, and contains large knobs for operating the climate control and audio system.

Bucket seats are standard, but buyers who want seating for six can order a traditional front bench seat. We found the bucket seats provide a good level of comfort and come with an armrest in the center console.

Rear-seat passengers are well taken care of with good headroom and excellent leg room. Lucerne's long wheelbase allows for a wider-opening rear door with almost no intrusion from the wheel well, making it easy to get in and out of the car.

OnStar with Turn-by-Turn service comes standard and allows customers to talk to a live advisor who downloads complete step-by-step directions to the vehicle through the OnStar system. Audio directions are then automatically played through the vehicle's stereo as they are needed, triggered by the OnStar system's GPS capabilities. Drivers can be directed to their destinations without having to take their hands from the wheel or eyes from the road. New OnStar eNav allows subscribers to find and save destinations on MapQuest.com, and have those destinations sent to their vehicle's OnStar system.

A touch-screen navigation system is also available, giving the Lucerne driver the best of both worlds. New OnStar Destination Download enables OnStar subscribers with screen-based navigation to quickly input their destination via the press of a button; while new XM NavTraffic (available in 80 major North American markets) delivers real-time information about accidents, traffic backups, and road construction directly to the navigation screen. With or without navigation, all 2009 Lucernes come with an enhanced XM display that delivers more channel and artist information.

Bluetooth comes standard on all models and enables true hands-free calling. It uses OnStar's voice recognition to dial phone numbers, conversations are played through the Lucerne's audio system.