Say Porsche implemented something in the cars firmware that did just that. Porsche in the car market, like Apple in the smart phone market, isn't even remotely

Say Porsche implemented something in the cars firmware that did just that. Porsche in the car market, like Apple in the smart phone market, isn't even remotely close to monopoly, so regulation would be extremely heavy handed and unwarranted. You as a developer could apply pressure by not supporting iOS. You said yourself in another response your app is very niche and has no competition, if you supported Android only your customer's would also have the opportunity to vote with their dollars and switch to Android. Inconvenient browser selection on one platform is a problem the market can fix, the government isn't needed.