yeah it has rev limiter.
But for auto gts, the redline is still at 7800 rpm, but sticks have like 8350 rpm redline.
So if you are using the m-mode, shift around 7400 rpm so it will shift at 7800 rpm, it takes while for it to shift, about half of sec.
And if you put it on regular mode, it will shift way lower than shift it yourself, it will shift around 7300 rpm.
So m-mode is much faster than regular mode.