Suitable car paint code to match silver Rocket Gold Star petrol tank?

[jjbsa]

I hope the title says it all.  I need to spray the tank on a Rocket Goldie.  Can anyone tell me a car maker's paint code from one of the big makers, e.g. Ford, VW etc. that is a good/decent match to what BSA used so I can order paint from a trade supplier?    I'm aware that different silver paints have diferent sized metallic particles in them.  I can handle 2K paints and will have to use them to cope with petrol containing ethanol.  I'm UK based so will be using UK suppliers. Thanks for all help,
Jon

[sean]

VW new beetle silver

[Brian]

Although not a BSA I painted one of my Moto Guzzi's with a Ford colour called "Lightning Strike Silver" which I believe is a standard Ford colour. A friend of mine built a RGS replica and used this colour on his tank and he reckons it is perfect. I used a base coat with a 2 pack clear over the top. If you have an automotive paint supplier close to you I would go and see if they have colour samples that you could look at.