Metal Grotesques

Not a clue if this is the right place, but does anyone know how much of a size difference there is between the finecast Grotesques and the old metal models? Recently bought 4 from eBay as I refuse to pay £15 for a single model when squad size is 3 minimum

The old metal Grots? As in the 3rd edition ones?
They're about 1/3 of the size - they're the same size as Wracks, which is what I use them for.

Yeah they are tiny. For size comparison you can see a couple shambling around in the background behind some wracks here.