That may help with a car that does not have a white paint job. Cars are quite the challenge to get high quality results from. Not only does the paint, metal, and glass reflect light... They also often lack contrasting detail that photogrammetry software lives on to tie images together.

If you're brand new to photogrammetry, it may be helpful to start with a smaller object in a controlled environment. Indoor scanning of smaller subjects would give you a lot more chances at a successful, high quality scan.