It’s is a light grey. Do know anything more specific than that. When the red car was being painted they had just finished a mk2 jag in this colour and I quite like it.
I realise this was posted a while ago now but this is what bugs me about my car when I look at any pictures of it you can’t see the wheels you just see black.Black wheels just seem to create a pair of big holes, yes lighter 'gunmetal' or silver-edged dark wheels to differentiate them from the tyre or more open spokes so as to show less 'mass'.
Or polished rims (again, to differentiate them from the tyre) : https://www.driftshop.fr/rota-rkr-15x8-4x100-et0-gunmetal.html
......a man of your talents you will probably have this and another finished by Donnington.