Excellent car. Really hugs the road, quick acceleration (not as peppy as the 350, but enough for a 36 year old). I was in the market for a "Certified Pre-Owned" 2006 or 2007, and ended up getting a new one for a few thousand more. Tells me they keep their resale value moreso than others I compared it to.
Navigation, Bluetooth, looks, feel, and ergo friendly controls.
Better gas mileage. A "Seek" button on the steering wheel for changing radio stations. You can only toggle through existing pre-sets. Navigation systems locks you out of some features when the car is moving. They're trying to keep from distracting your attention while driving.