Today's compact is well beyond what compacts were a decade ago so IMHO... I don't want ANY of them to grow any more. Obviously one's opinion of comfort/fitment in a cabin is subjective to a degree and while it might seem tight to you... it is more than adequate for my 5'7" 142lb frame. And there's more than enough in the rear for my girls.
I highly doubt a 6' footer would have issues in the front since they even make cars like the Spark have plenty of room these days for you folks on the other side of the spectrum. But the reality has always been that if you want more space... you buy the next size up. Otherwise... there would be no such thing as vehicle size classes.
Today's 7 Series and S Class and A8 are so damn HUGE, because they are being pushed from the bottom end. When a car like that starts pushing over 2 tons... you have to wonder what is going on.