回复：早上没有交代清楚，我的车被撞报废，所以急着买车

G37 is the best value at its class and reliability is excellent. The performance is on par with 335 and better than other brand.

Depend on options, you should target $800-$1000 below invoice, because they have a promotion on the 2010 model. $2500 below invoice is impossible (a joke?)

The navigation system is best at its class. As mentioned: "Includes enhanced graphics, touch-screen, lane guidance, 3-D building graphics, speed limit advisories, intelligent traffic routing and Infiniti voice recognition for audio and navigation system". If you google "BMW Navigation system" + "Joke", it will come up with more than 200,000 pages.