As it turns out, silver has always been the most popular car colour, with black a close second, but these days, white and white pearl are trending up. White is seen as being a lot of things: clean and luxurious, minimalist (perhaps reflecting the economy), eco-friendly, the colour of future technology. (See? We knew there was an Apple thing going on.)
The 2011 DuPont Automotive Color Popularity Report broke the most popular colours out by country:
North America
White and white pearl are most popular, then black and silver
Europe
The most popular colour for luxury cars is black, with white growing in popularity
Russia
Black, then silver and white (and oddly enough, green has a significant presence)
China and South Korea
Silver has the lead
Japan
White and white pearl, then black (which recently took the second spot from silver)
South America and Brazil
Silver, then black
South Africa
White and white pearl (and theirs is the highest presence in the world, with 40% of new cars being sold in those colours), then silver
So just do it. Buy your car to match your iPhone. Just make sure it has a built-in dock.



The Alchemists: Three Central Bankers and a World on Fire
Hubris: How HBOS Wrecked the Best Bank in Britain







