Racers experimented with their aftermarket wings and added headlight or wiper motors; cheap, quick response and reliable. It was either triggered by the brake lights with a SPDT relay or manually deployed by a steering wheel-installed switch. It shows one-and-done, full stall deployment or flat. They are also working on prototype wings with brake pressure transducers hooked up to arduino controllers for intermediate wing angles. The potential dangers are in top speed racing conditions, where there are quick handling transitions and also have to take account to different driver/driving styles. But the simplicity of this on-off system; easier to make, easy to adjust and easy to test and easy to operate.