They are this colour so you can hide them upside-down in ponds when out of use to save embarrassment. I refer you to the Elephant and custard series of childhood jokes should you find that confusing. If you find the joke reference confusing, don't worry its an age thing associated to the era of production of the microcar version of the colour scheme making you either a crinkly or a through-back. This of course places reality on the idea of retro styling, which of course is through-back styling, because we have run out of new ideas and want our modern rubbish to look good and wholesome. Your not fooling anyone, you know. I still do not want it. Go make some new, innovative modern cars that advance the game in an economically sustainable way and I will not worry so much what it looks like as content is more important to me than packaging. Unless you have a bowl of pink custard handy, of course.