Will a 350z cover fit a 370?
 

My friend sold his 350 but still has the cover

doubtful, but easiest thing would be to try it. I mean he is your friend so I would think this could be accomplished by trial and error

I don't see a reason why it won't fit. 370z is a bit shorter, wider, and lower than the 350z but I'm pretty sure it'll fit no problem. My brothers s2k cover fit my Z.....little tight but it managed.

saggy fit front rear tight sideways?

it's also the roadster forgot to mention don't think there is a difference lol