This saturday I will be detailing 2 black cars a 2002 M3 and a 2004 A6. This is my first job where the customer wants me to do both cars at once. I work with my partner on all jobs so I always have 2 sets of hands. I was just wondering what kind of game plan you guys would use. Should both of us work on the same car or is it more efficient for us to work on the two cars separately or is there no difference. Any help is appreciated thanks.