For anyone interested, the "garage in California" is EV West. Here are three more in-depth videos from the wonderful Fully Charged channel about EV West:

EV West - in general: https://www.youtube.com/watch?v=mOx5uCufB2Q

EV West - BMW M3: https://www.youtube.com/watch?v=pHaqiWcWSIc

EV West - VW Bus: https://www.youtube.com/watch?v=jLRAQu0b8-o