I guess I disagree about being a decade behind and them needing to "start". I'll agree that they are behind. If they take their current car designs and adapt them for 4 electric motors + larger battery pack and discard ICE then they might not be very far off time wise. Its not like they need to come up with electric motors or battery designs, those are mostly just solved problems. Supply chain of battery components is likely the critical path. Toyota shares many designs, parts, etc. across platforms so I think its less work than "starting" from a blank slate as you may intend.