Have you driven a Ford lately? The Detroit auto company reported a $20.2 billion profit for 2011, the third straight year it has made money. And the earnings were the largest in 13 years and the second-highest ever for the carmaker. The increase is significant over 2010 profits—it earned $6.6 billion a year earlier. The improvements were driven by business in North America, since Ford actually lost money in Europe and Asia-Pacific regions.