There is technically one day left in the sales year, but Ford evidently feels comfortable making this call. Ford declared Monday that its Focus compact car is the bestselling car in the world for the 2012 sales year. There were 737,856 Focuses registered worldwide through September. And Ford has more reason to celebrate, because another of the company’s compacts, the Fiesta, was the second-bestselling car this year, with 560,061 cars sold. A Ford spokesman credited the company’s “EcoBoost engines” for the huge sales numbers.