I was frustrated by not knowing when my MINI Cooper SE was autonomously illuminating its brake lights in response to regenerative braking. Rather than tape a piece of aluminum foil to the hatch to reflect the high-mounted, center brake light into the hatch window, I wired an LED in parallel with the center brake light and mounted it where I could see it in the rear-view mirror. I have put an illustrated step-by-step description of my modification online. After my visible brake light was operational, I was disappointed to discover how little regenerative braking is required to illuminate the brake lights. Regardless of whether I choose High-Energy Recovery or Low-Energy Recovery regenerative braking, I found the brake lights flash on and off frequently as I drive. I am using the indicator LED to train myself to know instinctively when I'm displaying brake lights to the car behind me. Some tail-gating drivers see my MINI Cooper SE's display of brake lights as an aggressive driver-instigated signal to back off. Other drivers probably assume I'm carelessly driving with my left foot on the brake pedal. My goal is to prevent the brake lights from flashing on and off in short, random-seeming bursts. The most surprising and disturbing behavior I noted was that the brake lights go dark after the regenerative braking brings the MINI Cooper SE to a complete stop. So if you want to be sure the driver of the car coming up behind you realizes you are stopped, remember to use the brake pedal to illuminate the brake lights. I wish the MINI engineers could have developed an artificial intelligence that would illuminate the brake lights more appropriately. Evidently, MINI's lawyers deemed even the level of deceleration typically provided by engine-braking in a gas-powered MINI to be dangerous without illuminating the brake lights of this electric vehicle. Where were those lawyers when it was decided a stopped MINI Cooper SE would not always illuminate its brake lights? BTW, I have 48 of these LEDs left over because I had to buy 50 on Amazon.com. Anyone who wants a couple can PM me and I'll send them free of charge.