I've actually never kept a flashlight in a car. If I'm going anywhere there's a chance I'll need one I'll just bring it with me, or several if I have my work bag. Typically an HDS and some modern Streamlight.
If I ever do the carshow circuit with my old truck I'll probably put something period-correct in there just for fun.
If I ever do the carshow circuit with my old truck I'll probably put something period-correct in there just for fun.