Hob Size

Hi folks. New to the forum and looking for some advice. We have a 5 burner gas hob (Fagor brand) in what appears to be a very small cut out of 575mm x 490mm inset in a quartz worktop.

We would like to swap it for a five plate ceramic hob but all the cut outs seem to be significantly bigger 600mm+.

Doe anyone know if its possible to find what we need or are we doomed to have a 4 plate or keep what we've got?

Thanks in advance