After almost 18,000 trouble-free I-Pace miles (11k on this 2020 HSE delivered July 2019, the rest on my original FE (Dec 2018) and a 1-month loaner (only to effect a windshield change)), I finally experienced a serious issue. While in stop and go traffic Fri Mar 6, I experienced a violent shuddering at low speed (even 3 mph). It did not seem braking related, as I only depressed the GO pedal to recreate this phenomenon. It's pretty hard to describe so I took 2 videos immediately to share with the dealer. The car has been in the shop for 10 days, and they have NOT been able to recreate this issue, so I'm putting this out for anyone who may have experienced something similar to help diagnose. The dealer's techs laughed a my description "It shuddered and I got a TURTLE on the dashboard" but they weren't laughing when they saw the video. I welcome any help, even theories at this point as to what might be causing this?? (Turn up the volume so you can actually HEAR what is happening.)