When you call be prepared to hang up & call again to speak to someone else. My experience was awful I was told nothing I consider essential to be able to drive is taken into consideration. Running costs aren’t considered either so if a car is available with a smaller engine but roomier they could say you have to go into that even if it then means you can’t afford to drive it.
It’s worth a shot if you’re on means tested benefits like housing benefit or a passport benefit like income based ESA.
Be prepared for it & if you get someone like that hang up & call back later generally they seem good but just be aware some seem to be a bit unhelpful