An engine swap with no charge is a bizarre analogy. Dealers do mods all the time. I've bought a new vehicle and had it race prepped between when I paid for it and when I picked it up. I've had suspension installed that wasn't going to be covered by the manufacturers warranty. When you start looking for custom , performance options, that is going to be on you as a consumer.Not true at all, cmon dude. If you are buying a new car and THEY suggest the change THEY are also responsible for letting you know that it will void the warranty and I do not know any dealerships that would make that suggestion on a brand new car. How about you call all of the Honda or Toyota dealers in your area and see if they will swap out the engine for a different one and no additional costs on a brand new vehicle. Bet you can’t find one.