Tesla has finally unveiled its much-promised big rig. And with not a little fanfare, especially considering that said semi is claimed to have a range of 500 miles (800 kilometres!) and, more importantly — at least for fleets seriously considering an all-electric 18-wheeled future — is able to recharge 400 of those miles (640 km) in just 30 minutes. So the question is, has The Elon Musk really reinvented the electric vehicle yet again? Or are his latest claims of re-imagining heavy-duty transport just more of his Madoffian fantasy?