Hi, I reach lvl 10 and buy the 350z but when I go to tune up with performance I see that I need lvl 15 to buy it.

My question is:

It's Scirocco allowed to tune up with lvl 10? Someone has that car?

nope, can't tune it up until level 14
I would keep the 350z, I've spanked alot of tier 1 cars that have been "street" tuned with it