I did not buy the Nav system for my FEH because I plan to keep the car for ten years, and I am positive that Nav systems in a few years will be better and cheaper. Even the salesman recomended against it.

The only thing I regret is not having instant mpg and state of charge, but I can't justify extra $2,000.00 cost. Can you imagine how much better milage would I have to get to pay for it?

I also have to agree with Pravis Prime that I'm not sure the Scanguage is worth $129.00. If it had Soc in addition to instang mpg, then perhaps. I asked earlier why SOC couldn't be added since the scanguage can be programed and the information is there. Does anyone know why?