Red plates in Switzerland, what would they use for?

Using this target will not be mandatory but will facilitate driving for many.

But what would these plates use for?

The red plates will be destined for cars that use bicycles on the back of the car.

Situated on bicycles, red - plated carriers are easily spotted and can be avoided in communications, writes self - engine escorts.

In addition, you may be more easily spotted by police plates and do not need to remove the car screwdriver every time they decide to take the bicycle with them.