I don't know.. my car is at 1700 miles now and when I tried to change gears in 4000rpm+range my 2nd gear felt like it was grinding a lot.. never happens when I take it easy though(normal driving)... do I have a tranny problem? is it possible that gears weren't 'syncronized' because I shifted too high rpm or something??

 

When I test drove the 06, the car only had 8 miles on it and when I parked it, the engine smelled like a burnt microwave. That's normal for a new car and the tranny too. Take it easy, your Z is still a baby, let it walk before it runs.