Hi, Both front tires look like on attached pic. Is it normal for GT-R? Alignment is correct.

i've done some reading. My front tires are done at 17000 KM (not miles)(b-potenza). If it's true that the fronts wear twice as fast (roughly) as the rears, do i buy new fronts and hope for equal wear time front to back for 1000 bucks now (and then buy 4 new all seasons with a higher treadwear...