Since I can't run 150mph I often acheive a lower speed with authority.
(Especially if I see a hybrid since I know that he is offsetting my extra fuel consumption.)

The one problem that I've noticed with this is the guy up ahead of you getting ready to pull out. Several times I've seen them look left at me, then right, and then go without looking left again. Not having anticipated my acceleration, I'm right on top of him as he pulls out.