Had the unpleasant experience of spending an hour and a half crawling across London this evening. It was rank, like being in one massive traffic jam. I averaged less than 10mph. When I finally got near home and could get out of second gear the car was making some weird noises. Growling away, funny sounds when coasting after lifting off the throttle from 3k>. I'm reasonably sure it was not the engine, sounded more like a transmission/gearbox type thing.
Does the 350z make weird noises if you sit in traffic for ages?
Steve