On second thoughts if the frunk and vault were full of expanded polystyrene - a quick trip to the Isle of Wight (an island a few miles off the south cost of England) is looking tempting :-)
True... though normal river water would be well within the normal battery temperature operation range... yes agreed, assuming that the electrics/motors are well sealed, my concern is blocking the intake from the river/lake water...
With the water displacement and (double O-ringed) sealed doors and rear gate, it would not take much to make the CyberTruck amphibious despite the weight, as Elon said, the electrics are already insulated/water sealed... and with the (limited?) pass through for quick excursion or perhaps a...
With most of the controls being on the yoke or central console, I was wondering whether right hand drive models of the Cybertruck could essentially be the left hand version but with dual controls* an F1 style detachable yoke, so when the car is stationary, you can detach the yoke and attach it...