I don't understand the obsessions with heat pumps - they don't save as much energy as people think. They also add £1k+ to the cost of a car, so they are not cost-free and they take up significant space for the extra plumbing.
Either the car is efficient enough or it isn't and the MGS5 is a pretty efficient offering and the MGS6 looks pretty good on paper too.
I respect everyone has different priorities, but this one really baffles me... it is like someone saying "I'm not buying this ICE car unless it has a chain driven AC pump which is water cooled." - instead of "the AC works well and the car is reliable".
Of course
@tsedge, all you say is spot on, especially the space saved under the bonnet by not having one, also an EV heat pump comes into play more efficiently during colder weather, heat pumps (I have a ground source heat pump running ALL of our hot water and heating needs at home) they have a conversion factor of 3 to 4 "coefficient of performance" (COP) meaning they deliver
3–4 units of heat for every 1 unit of electrical energy consumed, that is very efficient!
I don't know how efficiently EV heat pumps work, but probably the lower end of the range I'd imagine.
Agreed they add a grand or more at retail to the cost and that takes a lot of recouping in terms of savings, so needs to be factored into the overall running costs and we are all here buying budget MG's for various reasons, mine is meanness as I only want to get from A to B in reasonable comfort and reliably, fingers crossed.
But if they have a COP of 3, for anybody doing a lot of cold weather driving, over long distances, that is a considerable saving in my mind.
I can vouch my S5 is definitely more efficient than my MG4, S5 is a bigger car, very quick if you press the "loud" pedal in sport mode, so where they get the efficiency from is a Chinese secret.
I'm a techy guy, working some years in mechanical engineering R&D, my mind was tuned to exploring fresh approaches.