Colour is often used as a substitute for a decision. A showroom is already loud. Adding more saturation does not make the car more true.
Peacock Studios shoots observational film and photography. Location sound is kept. Music sits under it, never in place of it. Monochrome is the same discipline in a still: remove what is not the subject.
Black and white is not nostalgia. It is a constraint that forces composition, light, and the face of the person selling the car. If the frame does not work without colour, it did not work with it.
The test is whether a dealer would still put the picture on the wall if the logo were cropped out. If the answer is no, it was decoration, not a photograph.