I would love to see a complete revamp of the MINI colour range.
Sure there are some nice classic colours (Pepper white, Chilli Red) and
some fun colours (Hot Orange, Hyper Blue), but why do cars like the, otherwise dull, Peugeot 307 and most MG Z cars have a great range of really vibrant colours whilst the MINI doesn't? For instance, why can't we have that fantastic shade of Bird's synthetic custard yellow that MG's came in? Triumph's Speed Triple used to come in a colour called "Nuclear Red" which was an outrageous shade of metallic nail varnish pink. Great!
So come on BMW, throw caution to the wind and give us something really outrageous

There must be plenty of unpainted BMW 1 series body shells that you can use up all the dull paint colours on..
Tigger.