Greetings everyone! Im heading out to test drive my first g35 this weekend. Hopefully afterwards I will be trading in my s2000. Before I dig myself hole and end up with something Ill end up displeased with, I wanted to know a few things. Is the 5 speed "shiftable" automatic transmission useless for track use/racing? Are there any problems replacing the nav system and stock stereo head unit (i.e. one giant piece thats nearly impossible to upgrade) and is there any one year model that I should look for specifically? Thanks again for all you help.
- D
