get a metal coat hanger and bend the end round (like a fishing hook) slide it down between the door glass and outer door skin, towards the lock assembly at the rear of the door then go fishing for the catch and yank it upwards, that will open it.
another way to do it is remove the front grille and unbolt the 2 bolts that hold the bonnet closure mechanism, then you will be able to lift the bonnet and charge or replace the battery (assuming its not located in boot now)
with some cars (never tried it on an R) if you get a tennis ball and cut it in half and place the ball over the lock (where you put key in) and give it a sharp jab with the palm of your hand, the vacuum pressure will undo the mechanism, so that would be worth a try, must be a reasonable fit though around the lock!
cancel last bit as youve got no locks:roll: