One of the most practical, if slightly surreal , features of hybrid and all-electric vehicles is that, to charge them, you simply plug them in at the mains, as you would a smartphone, tablet or any other gadget. You leave it to charge overnight and you’re good to go the next morning. You plug your car into the wall. It really is that simple. But the recharging process could be about to become even simpler. Toyota is mulling a wireless battery charging system which would make charging the car as easy as parking it – you’ll simply roll up on the driveway and the car will be placed on charge. This is news that will undoubtedly come as a welcome relief to anyone who’s had to drape a power cable from an upstairs window to charge their car – as I did when I took the Chevrolet Volt hybrid electric vehicle for a test drive. So how will the new wireless technology work?