But Cupra are really popular?🤔
Aren't Seats built on VW "platforms" and the Seat element is the body?
Yes, Cupra were originally a model of SEAT, but then were split off to form a separate brand.
They are all part of the VW (VAG) group - which includes car brands VW, Seat, Cupra, Skoda, Audi, Lamborghini, Porsche, Bentley. It also includes some commercial vehicle brands and Ducati motorcycles.
And often multiple brands within that will have models based on the same platform. Mine, for instance, is the Skoda Enyaq, which is built on the MEB platform that also has the VW ID.4, Audi Q4, Cupra Taviscan - and outside the group (on license) the Ford Explorer/Capri.
Seat does not have any pure electric cars in the lineup, which is probably part of the reason they are getting rid of it, the group as a whole seem to be pushing pretty strongly down the EV route.