The numbering was a VWUK only thing, they're still smarting from the huge fuss owners made when the Edition 30 was initially listed as being 1500 cars and owners found out they imported around 2500 or more, hence the plaques that were retrofitted to the ED30 and subsequently fitted to the ED40.
I'm not sure what happened about the ED35 numbering, nobody was paying attention to that model such was its overwhelmingly under the radar launch and marketing. They didn't sell in big numbers that's for sure.