Imagine if your rental property advertised a fixed number of occupants but also a "step cap", charging extra for steps inside the property exceeding 100,000 per month.
Buy a car in the UK now have these special loans where it's not a lease, not a purchase but somewhere in the middle. You buy the car but you can't drive it more than X miles a year. And after a few years you have to pay a lump sum to have the car or give it back. So it's kind of like that.