As an early 2010's German luxury brand, ETK makes their cars with the things you have and will see on real life counterparts, and one of the most iconic of them all has to be the orange glow on the physical buttons. They turn on when you have your headlights turned on to help you find the correct button for the right job, and I really think if would be a great touch for the cars. (The 2015 BMW 3-Series interior at night.)
Illuminated buttons would be a really cool and honestly much needed feature for all modern cars. Driving at night just doesn't look right:
