I'm not sure people appreciate the white interior. A lot of race cars are painted Dove Gray on the inside. The amount of light this offers inside is exceptional. When working in the pits on setting up belts, wiring issues, plumbing, etc this helps you get things done quickly without having to drag out flashlights. I owned a race car with a black interior and it sucked. Dropped screws -- lost forever.
Here is a plumbing setup shot of a 65 using just shop lights.
Plus, I can talk about race cars all day long!