A real truck with real towing capacity, yet as quiet and smooth as most luxury cars in town and on trips. Optional sound system is very good. The nav system in my 2004 was cumbersome, so we left it off the new 2007. Buick fixed the AWD system, and it engages smoothly in 2007. Competent handling for a luxury truck. Don't drive or evaluate it as a sports sedan. I used to make jokes about people who drive Buicks, but this vehicle grows on you.
Quiet and smooth ride.
Touch screen for nav system. Also separate CD from audio system