I could use 4 individual driving lights 7mm dia. or less. I am sing them 2 in the Mustang grill and one on each lower front valence. The Mustang has little turn signal holes on the valence below the headlights that are just 1mm dia., so a little stalk on the back of the driving light would be helpful for mounting. My other cars have 6 lights each already, and the Mini has one on the back hatch.
(I heard more Monte Carlo build talk yesterday during intermissions between races that indicates some existing Porsche 914 owners might be building other more original/unique cars. My black Cobra Goodwood car was malfunctioning, so I put my Mini on the track and was quickly black flagged. Ha Ha.)