lol, what correct spec would that be then, something different to a 4 pot caliper possibly??
The ones they used on the early test cars were bigger than the Cupra R brembo's, they were still running 345mm discs. However due to excessive overheating and costly consumables such as the expensive pads they decided to replace them with the R32 brakes, which are more than upto the job. And i believe the servicing costs will be less. What were SEAT charging for R pads, over £150. Imagine the price on pads almost twice the size.
If you really wanted good multi-pot calipers, there are plenty of alternatives out there that are far better than the Brembo's.