When traveling to and from Cornwall last month I noticed that the latest 'in' colour for many Germanish cars is now the kind of grey colour that our navy uses to hide their ships from enemy eyes...... Audi, VW and Skoda mainly... is this one of their safety initiatives ? Whatever the make, on many German cars the first thing to get covered with road grime is the rear number plate, is this a deliberate design to funnel all the dirt onto it, or do they supply aerosol cans of 'road grime' for the drivers to do it themselves ? Never really noticed this phenomenon on other makes of cars. Don't know if the grey paint absorbs radar energy as well, to complete the 'stealth technology'.