I regularly fit my large frame Levo with both wheels on in our Prius. Have to lower the seat and it's easier to load and unload with one pedal removed. When it's even a little muddy I think harder about adding a hitch and getting a 1up rack though.
Since this is an eMTB forum thinking electric seems appropriate. This thread on one of the Rivian forums was talking about using their truck variant (R1T) to haul bikes.