The Nissan Leaf may be the best-selling electric car in history, with more than 200,000 sales, but the Renault half of the Renault-Nissan Alliance can now trumpet a milestone of its own. The Renault Zoe electric car has passed 50,000 sales since the first one was delivered in December 2012. The 50,000th Zoe was presented, at Renault's...