Here's where I'm at, Double Stack grey is not a perfect match. I'm thinking the factory tone is directed slightly towards gun metal or pewter which utilize blue in the mix. So if I was to persue this I'd be looking at grey colour charts in that direction.
I painted it's dirty old battery box area months ago in Wattyl stop rust Pewter but that's too blue, same with Supercheap epoxy enamel pewter, a lighter shade. I've got all sorts of other cans of grey off the shelf, none come close. There is a possibilty that Rustoleum dark machinery grey might work, can't find any here.
There may be clue in the body colour - Sonic Silver, as I'm getting close to sorting out some of it's damage. I'm noticing that silver takes a turn toward grey - a light shade of gun metal. I'm wondering if the elusive under bonnet grey is the same paint but without the silver.
Any way I've made my choice, bought the ticket, taking the ride, no turning back.

