the first production model will be going on sale this summer. its five square metres of solar panels come in narrow sections that better curve around the body and also mean that if it's parked partly in the shade, the sections that are in the sun still work at full capacity. but even though the battery can take you 440 miles on a single charge, a day's worth of sunlight will only provide about 45 miles of that. the rest still has to come from plugging it in. however, 45 miles might be enough to get you to work and back. you can fast—charge it using a normal charger, but the solar panel will recharge your commute every day. so, basically, when you put it outside of your office space, then it recharges itself, and when you get back, the car is full again.