Why not the tires? New cars come with tire pressure sensors and tire pressure plays a big role in fuel efficiency as well as safety. It's just a few more bits of info.
Anything that has a remote chance of making more profit than the competitor will be attempted. Even if it's morally questionable... moral != legal. Heck, VW even threw legality out the window with emissions shenanigans a few years ago.
I'm not arguing that it's wrong or right... it's just the entrepreneur's duty to try and the consumer's obligation to keep things in check.
Anything that has a remote chance of making more profit than the competitor will be attempted. Even if it's morally questionable... moral != legal. Heck, VW even threw legality out the window with emissions shenanigans a few years ago.
I'm not arguing that it's wrong or right... it's just the entrepreneur's duty to try and the consumer's obligation to keep things in check.
Caveat emptor.