Thanks again for your interest and advice everybody. It really is super to share these pleasures with those of like mind.
I know green cars can tend to blend into the fields but confess I hadn't thought about grey blending in to the tarmac so point noted there!
Williams have identified a cleaning (and apparently waxing) pack designed and manufactured specifically for matt/satin finishes so I'm holding back until I've collected that stuff at the first sevice - so the car is currently a patchwork of fingerprints!
