I'm not going to say they're ubiquitous in the automotive world (assuming non-belt-driven like you mention below), but they're hardly brand new. The battery-electric buses in my city have heat pumps, and (IIRC) other cities opted for air conditioning in their trolley-bus fleet over a decade ago. Built to automotive standards is hardly uncharted waters.
Though perhaps I'm simply blown away living in a colder climate. Resistive heating if it's only to defog windows in the morning, or similarly rarely used, is reasonable. Resistive when getting started (one major hurdle, ICE -> EV, resistive -> heat pump, at a time) is reasonable. I just thought the automotive world had moved forward more rapidly than it had.
Though perhaps I'm simply blown away living in a colder climate. Resistive heating if it's only to defog windows in the morning, or similarly rarely used, is reasonable. Resistive when getting started (one major hurdle, ICE -> EV, resistive -> heat pump, at a time) is reasonable. I just thought the automotive world had moved forward more rapidly than it had.