system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why, in the UK, do cars have white front plates and yellow back plates?

I just noticed today and am super curious 😵
gpt
The reason for a yellow plate at the rear and white at the front is because it is illegal to show a white light to the rear at night, and that the law includes reflectors in its definition of what constitutes a light. This was before the days of reversing lights, for which the law was amended so that if you are reversing you can show a white light in conjunction with a red light.. Also Yellow & Black are the boldest contrast you can get and thus enables them to be read at the greatest distance.