Originally Posted by RPM90
Sport drivers mode also puts the trans "D" selection into sport mode. It will shift to 7th once you get past 60mph and steady cruise. To get to 8th you have to get to 100mph. Not very useful or practical for US roads.
It depends on how you drive. It make perfect sense when driving aggressively in an area with many tight corners, punctuated with the occasional fast sweeper.
For slower drivers who wish to cruise in a higher gear, seven and eight are a trivially easy button push away.