The Opel Flextreme is a Opel’s first electric car that will be based on the Chevy Volt will be manufactured in the U.S. The European customers should expect to pay a substantial surcharge of $15,800 or more over a comparable Opel model with a conventional diesel or gasoline powertrain. The Opel Flextreme was previewed in concept form at last Frankfurt Auto Show is due to arrive on European dealerships in 2012.