According to http://www.largus.fr/mondial/photos-opel-ampera-e-2017-largusfr-deja-a-bord-dun-prototype-8081388.html we will learn the exact range and charging times of the Opel Ampera-e on Tuesday Sept., 13th.
I personally expect at least 500 km of (the unrealistic european) NEFZ-Range:
210...