A CTSV or RS4/6 is not a highway cruiser. They are compromise sports cars. tighter suspensions, stiffer springs, lower, do not a highway cruiser make.
Highway cruiser = s-class, non-v caddies, and similar, with non factory performance trim levels. The whole point of a highway cruiser is that it's not your fun weekend car, gets good gas mileage, and has many others out there like it so parts are cheap. A Mazda6 would be a fine highway cruiser, especially if available with the diesel and wagon that Europe gets.
Put yourself in stop and go traffic, then make the decision, as that is and will more commonly be the norm for most of the US. Commutes can be hell, especially for us that live near tunnels that seem to inherently cause traffic as if a spell had been cast on them. Nobody likes feathering a clutch in stop and go up a grade for a mile in a crowded smelly tunnel.
Highway cruiser = s-class, non-v caddies, and similar, with non factory performance trim levels. The whole point of a highway cruiser is that it's not your fun weekend car, gets good gas mileage, and has many others out there like it so parts are cheap. A Mazda6 would be a fine highway cruiser, especially if available with the diesel and wagon that Europe gets.
Put yourself in stop and go traffic, then make the decision, as that is and will more commonly be the norm for most of the US. Commutes can be hell, especially for us that live near tunnels that seem to inherently cause traffic as if a spell had been cast on them. Nobody likes feathering a clutch in stop and go up a grade for a mile in a crowded smelly tunnel.