After test driving the Audi A6, Benz E350, MKS,BMW 7, and Lexus 460 this was the nicest vehicle for my use, just driving. Exterior styling is the most striking of any boring offering I drove. The interior styling and materials are beautiful, There is unneed complexity in the other cars. This car combines class styling and performance. The A6 was my second choice. It had a lighter steering feel and a better NAV system. So what, I usally know where I'm going and dont like to talk to a machine that much. This car looks great and is so pleasing to drive. If you don't want to feel great driving this car and listening to the Bower & Wilkins sound system then buy one of the competiton.
The sound 5.0L engine at idle is stunning. Ride quality and performance is second to none. The cbain interior and sound system must be experienced.
The NAV system is DVD driven and I am sure it will change the HD in 2011. It functions fine and I usally know where I'm going.