Have you considered the Polo GTI? After a lot of searching we ordered one on Motability and we currently have 600 miles on it (recent delivery). I personally love it.
Don’t let the Polo name put you off as these are now a decent size. Not too big and not too small. It’s also comfy and economical as a daily driver. But as it’s a GTI it has plenty of power when needed. Although the Golf GTI isn’t on the scheme, if it was I would still pick the Polo GTI as it just makes more sense.
If you’re interested and want any more info, let me know.