The CPC 472 was a spanish version of the CPC 464 with additional 8 KB RAM.
The reason Amstrad released a special version for the spanish market was a law that said that every computer with up to 64kb should adhere to some rules - namely, have extra keys for the spanish language. So Amstrad soldered in an extra 8kb which was not, however, usable by the machine since it was not connected to anything else.