If it’s primarily interstate you can’t go wrong with nice cushy big American iron, Lincoln did it quite well from the early 70’s through the 80’s at least. I can still smell that vaguely sweet scent of a Lincoln leather interior. Just float on down the highway serenely at no more than 15 over and watch the scenery pass by your windows.
If it’s not primarily interstate it depends upon the length of the trip. Some of the most entertaining cars are a little punishing over the long haul.
Yeah. I love my FRS with michelin PSS’s on it. But I do a 150 mile commute every day through the Kentucky twisties. If I had to do a lot of freeway driving, I’d not own that car.