I was still wondering about the electric seats. So I decided to check out the German konfigurator to see if it would shed any light on the matter. Would it be more up-to-date?
"Dazu müssen Sie auch diese Ausstattung hinzufügen:" = You must also add this equipment = Leather seats.
There is no option for cloth seats and electric adjustment that I can find.
Still not sure why the price difference between £325 and £525, between the configurator and the brochure. Probably just a mistake somewhere.