what AMG are you driving @ 200 MPH?
Oh and Pogo, what you're saying doesn't necessarily hold true with modern cars which have automatic cylinder deactivation, electrically controlled aerodynamic aids, and super over drive transmissions.
It is generally true that the faster you travel the more power and thus the more fuel you need to overcome wind resistance, but when the car can electronically adjust itself to lower its coefficient of drag at speed, as well as briefly and intermittently shut down half of it' cylinders , those will combat the laws of physics then you add in a super high geared 8 speed auto transmissions and such.
I mean 22 MPG out of a 700+ HP car is phenomenal
Maybe, but (a) that's about 600 hp than necessary, and (b) if my car ever returned 22mpg I'd have to have it towed to the mechanic to find the fuel leak.
Who says? Just because you like to mosey along doesn't mean others do. Why do you feel you have the right to dictate what other people like?
Beats me, you tell me. Might wanna start with figuring out where I ""dictated what other people like".
"600 hp more than it needs", seems pretty opinionated to me. I like to drive fast. I am very safe when I do it. I also have no problem with those who like to mosey along so long as they don't gate keep ( a common problem in California, not so much here in Nevada) because they think I shouldn't be allowed to drive as fast as I like so long as I'm safe doing it.
The simple fact is 700 hp -- which is what the poster's example stated -- is numerically about exactly 600 more than my ride needs (or has) to move at highway speeds. That's simple science. Any more would be wasted -- the proverbial "more than a handful".
You drive however you want. I don't post about how you drive. I wouldn't know anything about that. I post about my own experiences. They're quite sufficient.
Weird post. Paranoia strikes deep.

Back to STTAB's post -- I fail to see how having an 8-speed (or 2-speed or 123 speed) transmission is relevant to wind resistance in top gear. At that point you're no longer shifting. And for that matter, drag coefficient is dependent on surface area; I don't think you're going to change that d/c in motion unless you've got either an active body shop running alongside you or some kind of shape shifting technology.