Of all the colours in the world, why or why grey it out? 
One would not even choose a grey toilet! 
We're not talking toilets, we're talking cars. Seriously, what colour do you see most Aston's showcased in? Grey. Can't remember the name but there was a limited edition Lambo on Top Gear a while back, the one with jet fighter dials etc, stealth bomber grey. It just looks great! Red is too nickable, black too hard to keep clean, White will go out of fashion.. Grey all the way 
It is still: 'Oh so grey!' BORING.
Even worse is silver.

I agree about white going out of fashion, but it looks fabulous on a GTi. It is very popular now.
Black is total style, but hard to keep clean. Makes a car look expensive. Gives a car the depth of finish no other colour can. Gorgeous on GTi.
Red is totally fabulous especially on a Golf GTi. The GTi in the brochure is RED.
But this is my personal taste.
Each to their own.
