Renault S.A. () is a French multinational vehicle manufacturer established in 1899. The company produces a range of cars and vans, and in the past, trucks, tractors, tanks, buses/coaches and autorail vehicles. According to the Organisation Internationale des Constructeurs d’Automobiles, in 2013 Renault was the eleventh biggest automaker in the world by production. In 2013, 50.5% of the Renault sales were outside Europe. In 2013, Renault had the lowest average CO2 emissions among generalist brands in Europe, with 110.1g CO2/km. Headquartered in Boulogne-Billancourt, the Renault group is formed by the namesake Renault marque and subsidiaries Automobile Dacia from Romania and Renault Samsung Motors from South Korea. Renault has a 43.4% controlling stake in Nissan of Japan, a 25% stake in AvtoVAZ of Russia and a 1.55% stake in Daimler AG of Germany. Renault also owns subsidiaries RCI Banque (providing automotive financing), Renault Retail Group (automotive distribution) and Motrio (automotive parts). Renault Trucks, previously Renault Industriels, has been part of Volvo Trucks since 2001. Renault Agriculture became 100% owned by German agricultural equipment manufacturer CLAAS in 2008. Renault has various joint ventures, including Turkish Oyak-Renault, Iranian Renault Pars, Chinese Dongfeng Renault. Carlos Ghosn is the current chairman and CEO and the French government owns a 15% share of Renault. As part of the Renault–Nissan Alliance, the company is the fourth-largest automotive group. Together Renault and Nissan are undertaking significant electric car development, investing €4 billion (US$5.16 billion) in eight electric vehicles over three to four years from 2011. Since 2012, Renault provides engines to the Mercedes A Class, B Class. Renault is known for its role in motor sport, and its success over the years in rallying and Formula 1. Its early work on mathematical curve modeling for car bodies is also important in the history of computer graphics.