@kezo, I’d be amazed if those numbers stood up to close inspection but the reality is no matter what buying a heat pump on this lease scheme is a bad financial decision. I’d rather lose on range.
Having a quick look round the net. It seems not all heat pumps are equall and dmanufacturers have different takes on how they should work. On the contrary to my beliefs, that all heat pumps needed both a compressor & evaporator, to run in reverse to create heat and combine scavaged heat from components. Esentially AC in reverse or a fridge if you like.
The consumer hasn’t just to make sure a heatpump makes financial sense (as an option), but also do the homework to what system would actually be fitted and whether it would make sense. Do I sense a form of cost cutting by some manufacturers!
As far as Hyundai/Kia go its an excellent system, in that it has all the right bits, which the thread starter may find usefull.