#GREENFAIL: Opel Dropping Amera, The European Chevy Volt, Because Of Weak Sales. “The car was a relative hit back in 2012, when it was named the European Car Of The Year and sales topped 5,200 units. Compared to 2012 numbers, which were good, Ampera sales dropped 40 percent to fewer than 3,200 in 2013 despite a massive price cut. They are down another 67 percent so far in 2014 and the car has sold just 332 units through the end of May.”