We have 4 Cupra Born’s where I work, being in the market for a second vehicle I have had a good look at them and have drove them a few times, I have also had a good look at the MG4 includign a test drive and while I think the Cupra is probably the better car overall theres not to much in it, however considering the difference in AP the MG is the far better proposition inless there is a specific reason to go for the Born.
Megane looks really nice, Renault have been in the EV game a while so it be a good vehicle, the main issues historically for Renaults was poor build quality.