I did a research project of cars that actually have decent auto lane following distance keeping cruise control for my 1hr highway commute, and tried out a few in a rental cars (hyundai and kia) and a tesla model y and tesla really is the best that is out there unless you want to potentially spend a lot more to get something that comes close. A friend of mine has done many long cross country road trips no problem with just autopilot.

GM Supercruise and Ford Bluecruise are the current competition it seems, with BMW, subaru and mercedes being behind those 2. I haven't driven with them although to personally compare yet.

Even though the interior is a bit lower quality, there isn't very much quite like it on the market. It also fits an almost 7 ft surfboard inside comfortably, is a nice car to sleep in for car camping and you can get a model Y for less than $20k used now.