For you coming from a BMW this car will be louder. For me though coming from and STi its very quiet...
I have not felt any noticeable difference in temp around the trans tunnel/floorboards.
The only "issues" ive seen floating around here is oil temp issues. Which i personally have yet to see myself. It seems unless you are tracking the car or driving in 90-100+ temps this really shouldnt be an issue.
Dont really have any input on the stock nav but i am fairly certain that you will better off with an aftermarket nav unit.
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2010 370z PW 6MT
She's Still a Virgin
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