Was speaking to a guy picking up his 997S last week - he'd gone for GT silver. He'd originally wanted Polar but no longer available as a 'special' colour, only as paint to sample approx Pounds3000 in the UK.

Must admit, can understand paying a bit extra for Polar as it looks special and 'different' in isolation, but GT silver only really stands out if it's parked near an Artic Silver one IMHO - but hey, as I keep saying, half the fun is in the speccing.