I did my first long trip on the SS yesterday, that took me through six States (including my own): IL, IN, OH, WV, VA, NC.
I'm still in the extended break-in period, and (mostly) held it to 68mpg where speed limits permitted. IIRC, those are either WV or VA mountains off in the distance. The car, quite simply, is an excellent road trip car. It wanted badly to be driven much
more vigorously than I was giving it. While I wouldn't say I was "refreshed" at the end of the day, neither was I feeling any ill effects from poor seat support or other issues I've had with our other vehicles on longer trips.
While I didn't buy the SS to save gas, I was blown away with the mileage I've been getting. Note that I have a quarter tank of gas left, so that's the average for that tank. I had actually been up around 26.2 until I hit the mountains. My fuel app shows a calculated avg. of 25.2 for the trip, so the computer's not too far off.
And that, folks, is what 1009 miles of dead bugs looks like.