Tech5150
Member
There is a road outside of Yosemite National Park called Old Priest Grade that I've read to be 18-20% grade in parts. I've lost brakes in older cars coming down it. In my '05 Prius, I would lose regen part way down as the battery became fully charged. I've recently taken my M3P+ down it and could control the speed to down to a CRAWL if I wanted using only accelerator pedal. No brake pedal at all. Surreal...I only had to use brakes in the last 15' coming to the stop sign. Is this really ONLY regen? So, it doesn't use friction brakes at all on aggressive decel? Very hard for me to get my mind around slowing a 4100lb vehicle to 15mph coming down a cliff...I did not smell any brakes at any point. I was beside myself as we came down it, bugging my wife because I was like a little kid. "DO YOU REALIZE WHAT'S HAPPENING RIGHT NOW??? I'M NOT USING ANY BRAKE AT ALL!!!" I was blown away... So, really? It doesn't use brakes at all during regen? Love this car...