The exterior of the car is stunning, while the interior could be a bit more refined. I have had the car for about 8 months now and the only problem I have had with it is the NAV door had to be replaced because it was not opening intermitantly. This car is off the scale if you are looking for fun to drive. And you'll get more looks than you could imagine while driving it.
Navigation system works very well, and is my favorite tech toy in the car.
Interior could be improved. While it's not ugly, it is just a bit plain. I would like to see more on the design of the dash, i.e. brushed aluminum, etc. Other than a few things this car is great.