regen braking

My old car had a paddle regen break, was pleased to learn that my new Ioniq 5 has a similar feature - in some ways it works better, but others not so much. Better: In case you didn't know, you can do a paddle regen (maximum regen, great for preserving battery by slowing down early, for example...

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...