@LupinLou
Adaptive cruise control has been available on automatic ICE cars for some time
That’s totally correct. We had it on the last ICE car we hired, to drive to Belgium, and it was a lovely Audi automatic saloon that I would have been chuffed to bits to have normally.
But what one doesn’t realise until you have an EV is that it works so much better when it is coupled with regenerative braking and single-pedal driving.
In an ICE car, you can only slow down very slightly with engine braking, and if you want to slow down more aggressively without braking you have to down shift.
So adaptive speed control in an ICE car has limitations on how smoothly it can slow down, and how far it can slow down without going through gear changes. However well an ICE car is engineered it lets you know that it hasn’t really been designed to slow and stop very smoothly.
In an EV with ACC and single-pedal driving on, you can be following a car at 70mph and then as it slows down from 70mph to a standstill because of a blockage on the motorway the EV will track that completely, while charging the battery, and right at the end will apply the friction brakes to stop the car completely.
When the car in front moves off, you will follow it. And all the while your feet are on the floor in whatever position is most comfortable.
And an EV motor is far more progressive and controllable that an ICE, so that all of the speed adjustments up and down are imperceptible. So although ACC is available in ICE cars the way it works in an EV is simply much better.
I can imagine that plug-in hybrids can also do a certain amount of regenerative braking, but the small size of their batteries will limit the charging current, and therefore the braking force that is available, meaning that ACC will also be less capable than in a Tesla/Polestar class vehicle.