What colour are my spiders?

[S1X OK]

Does anyone know the nearest paint match to the standard TVR spiders? I have a very light scuff to one of mine and dug out the airbrush and compressor to touch it up with the Audi silver touch up kit I just happen to have. Although the silver is the right colour/shade etc, the metallic flake doesn't look as big and glittery as the original. It's not bad with the lacquer over the top, but knowing my propensity for 'cutting it fine' on the odd corner, it would be nice to have a handy dollop of paint to tidy things up when I need it.
Any suggestions from the panel?