@MG Clive, I thought the ER had a WLTP of 323 miles. The ev-database.org website gives it a 'real range' of 265 miles with the limits set as 190 to 390 miles dependent on weather, use of auxiliaries and type of driving.
The Cupra marque seem to have lots of options so you need to ask what is fitted to the car you buy. Whereas with MG the options go with the particular vehicle type.
Looking on a Cupra forum (my Son-in-Law has just got one) you seem to need to pay for the remote connection to the car after a certain length of time - £57 per year being quoted. MG offers iSmart for free (so far) to do the same thing, ie cabin preconditioning, changing charging parameters ...