Another interesting tidbit is that Lars said he "Had to convivence Elon on that one." referring to 4-wheel steering, so Elon didn't want to include that.Another fun tidbit--Lars mentions that in addition to the Semis being run by Pepsi et al, Tesla has 'close to' 100 in their own fleet making Fremont/Nevada runs. I'm not sure how many I thought Tesla had in active internal use these days, but it wasn't ~100.