What are the best settings to have a 4K POE camera to be able to read license plates of cars driving in front of my house?

I live on a corner with 2 4K cameras angled to be able to see fronts and rears of cars pretty straight on in a residential area. But they are still not quite clear enough to capture actual license plates. Any suggestions on better settings for these 4K cameras to get clear pictures of license plates.

thanks for any help.