Thank you all!

@bdfd

But hard in time to place the lights, right ?

The placement of the lights requires precision and takes time even if I limit myself to 4 per side of the vehicle.

@VeroniQ

Can you tell us how to do that?

First, I choose vehicles with transparent headlights (it does not work with textures).
To place the small white light sources, I choose the aerial view centered on selection and the furniture icons in plan set to top view.
The night lighting environment is made with 4 large halogen light sources placed around the vehicle.

Here are some illustrations of my remarks.