stealth car (not) seen this morning - borasport20
Actually it was a metallic mud coloured Lotus Elise

but here's a thought.
We were driving into bright low sunlight with deep shadows. All I could see of it was the rear numberplate reflected in my headlights.

If I hadn't had my lights on, I may not have seen him until his brake lights came on, and when the outside temp is -1, that is not good !