I’d probably extend.
The reason we’re not extending is simply that we’re not that happy with our car anymore, and of course petrol getting evermore expensive.
Our Hyundai dealership is.. a bit naff, they didn’t strike me as “friendly” (even before knowing we’re with Motability), nor particularly interested in explaining things to us. Proof is in the pudding though, GTE on saturday and then probably the wednesday after the Kona.
As a tip with the ID3, turn the interior lighting all the way up in brightness – it’s very visible even in daylight (unlike in our current car), and makes the cabin a considerably nicer place to be. At least to us.