I just bought a Vee to vintage race, and our organization requires a brake light on Vees, probably because they group them with small-bore stuff like Midgets and Sprites. I haven't had a chance to look closely at cars in paddock yet, is there just a switch you can tee off the master cylinder? Like an OEM VW brake switch?
Maybe I should get a nice bright LED light like F1 cars and have it flicker sometimes to pretend I'm harvesting "power"