Africa could be a promising market for vehicles and fuels, according to a recently released report from the African Development Bank. The study found that 313 million Africans were middle class, up from 196 million in 2000 and 151 million in 1990. For Ghana, for example, that translates into an 81% rise in cars and motorcycles since 2006. In South Africa, there were 300 vehicles per 1,000 people in 2007, double the number five years earlier. The emerging middle class is due to strong economic growth. Ghana, for instance, is benefiting from high gold and cocoa prices.