Reference for the 3 rammed cars "at speed"?
Sideswipe of car stopped at inner edge of roadway in China: https://www.youtube.com/watch?v=rJ7vqAUJdbE
Rammed stopped or slow moving street sweeper at inner edge of roadway in China. Driver killed: https://www.youtube.com/watch?v=xoSNw_n1Xgk
Rammed stopped van at inner edge of roadway in Germany: https://www.youtube.com/watch?v=qQkx-4pFjus
Those are all the same design flaw - a big solid obstacle partly blocking the lane was hit.
These all have dashcam video on Youtube. One wonders how many more times this has happened without a dashcam.
This list doesn't include ramming the semitrailer in Florida, another fatal event. (Ref NSTB investigation HWY16FH018).
(There's some denial from Tesla fans, and Musk, about this.)