Zealand. Global sales Combined global Volt/Ampera sales passed the 100,000 unit milestone in October 2015. The Volt/Ampera family was the world's best selling plug-in electric car in 2012 with 31,400 units sold. The Opel/Vauxhall Ampera was Europe's top selling plug-in electric car in 2012 with 5,268 units, representing a market share of 21.5% of the region's plug-in electric passenger car segment. However, during 2013 Ampera sales fell 40%, and the declining trend continued during 2014 and 2015. , global Volt/Ampera family sales totaled about 177,000 units since its inception in December 2010, including over 10,000 Opel/Vauxhall Amperas sold in Europe up to December 2015. Until the end of 2018, the Volt/Ampera family of vehicles listed as the world's all-time top-selling plug-in hybrid, when it was surpassed by the Mitsubishi Outlander P-HEV (200,000 units by March 2019). , Chevrolet Volt sales are led by the United States with 157,054 units delivered, followed by Canada with 16,653 units through September 2018, and the Netherlands with 1,062 Volts registered through December 2015. Out of the 9,989 Opel/Vauxhall Amperas sold in Europe through December 2015, 5,031 were registered in the Netherlands, 1,542 in Germany, and 1,279 in the UK by the end of September 2015, together representing 78% of Ampera sales. The following tables present retail sales of the Volt and Ampera variants through December 2015 for the top-selling national markets by year since deliveries began in December 2010. Demonstration vehicles allocated to dealerships are not included in retail sales reports while they are used for test drives. End of production In 2018, General Motors decided to end production in March 2019. The primary reason given was that the Volt is a sedan, and sales of traditional sedans were in decline. Car salesmen were proving resistant to selling the car because it was more complicated (and thus took more of their time) to explain how the vehicle operated. Marketing trends showed that sales of hybrids were dropping as more customers were turning to all-electric vehicles like the Chevrolet Bolt. The range-anxiety associated with all-electric vehicles had been in decline due to better battery technology, and most hybrid drivers were turning on their gas-powered engines less frequently. The battery technology developed for the Volt had already been incorporated into the Bolt. Related concept cars Cadillac Converj The Cadillac Converj is a plug-in hybrid concept car first unveiled at the 2009 North American International Auto Show.