hi martti,
in germany, most people are extremely boring with car colours when compared to finns. here, as in the UK for example, approximately half of all cars appear to be red. there's then a lot of white ones, some black, and then the whole spectrum of colours. more importantly, when metallic costs another €1500, i think many would begin to think twice, even in DE.
Most Germans regard it as important that the more expensive the object is, the more "subtle" the colour is; and therefore, you get a lot of black, silver, possibly gold, and lots and lots of variations - small differences in colour, e.g akoya silver or kristallblau - based on the same thing as this helps to keep the "value" of the vehicle.
moral? try finding a red one. it should be cheaper, as should white ones (especially white) as no-one wants them. Same thing applies to weird colours (kastellrot comes to mind, which is why they killed it, like jaipurrot a couple of years ago) as those who want them are prepared to pay and the rest find them a turn-off.
does this help?
if you want the full story, i have it here in one of my wife's textbooks: it also explains why you should never wear brown to a job interview (colour of laziness) and preferably red or blue (truthfulness)....at least in Germany, that is...
Bret