It has been estimated that the Opel Ampera-e can travel for more than 236 miles (380km) in the real world. According to this article here. It has apparently said to be offering 311 miles (500km) ? This is all coming from an article I read on CarScoops btw, I have no idea what's legit of course because I haven't seen any real world testing nor have I personally real world tested it. That's a pretty big difference from paper to tarmac though ?
Check it out here: http://www.carscoops.com/2016/09/opel-ampera-e-debuts-with-500-km-range.html"Our Ampera-e is not eco-luxury, not a gadget and not just a second car. Opel is showing that electro-mobility is also achievable for a much broader audience thanks to the most innovative technology – Opel is democratizing the electric car with the Ampera-e", said Karl-Thomas Neumann, Opel's CEO.