I think they are using this as a 'nickle and dime' tactic and tricking you into thinking that the base price of nismo tech hasn't increased for 2016 - unless you wan't pearl white, then, that will be extra - even though they haven't charge extra for pearl paint in the past... Has the pearl paint quality improved to justify this extra cost? I doubt it - but I haven't checked out a 2016 yet.
Just one more thing to negotiate out of your contract...
