so it is stable and as an engineer that's a wonderful property to have. the driver can manually choose to change colour, or you can do it via the sensors that are embedded in the vehicle — so you can have a temperature sensor that when it's hot the car will be white, and when it is cold it will be black, or you can have a light sensor which changes colour at night time. why would anyone want a colour changing car? it's a really good question. and aside from the obvious cosmetic aspects and the coolness aspects, which is the first thing that people kind of comment on when they come in, we see self—expression as something important, you know? it's like you choose your clothes, you choose your car, the ability to show yourself with your vehicle is a nice feature. but in addition to that, we can show useful information — so in europe, car sharing is very big and there are a lot of car sharing cars on the street, and to see if a car is free or if it is charged — you would usually have to whip out your phone and take down your mask and put your face recognition on and get the right