General Motors sold 9.03 million vehicles last year, claiming back from Toyota the title of world's largest carmaker.
The Japanese giant has not yet released official figures, but last month projected a final result of 7.9 million units, a fall of 6 per cent, because of the earthquake and tsunami in Japan last March.
Another record result from Volkswagen - of 8.16 million vehicles - will knock Toyota into fourth position after the Renault-Nissan Alliance, which said it shifted 8.03 million. Sales for VW and the Alliance grew 14.3 per cent and 10.3 per cent respectively last year, enabling them to further close the gap on their Detroit rival, which grew 7.6 per cent.
Meanwhile, Hyundai-Kia looks likely to have edged Ford - which is yet to publish its final result - out of the top five, with sales for the ambitious South Korean group having grown more than 25 per cent to 6.53 million units.
GM's fastest-growing region was the United States, up 11.4 per cent with 2.9 million vehicles sold, followed by its "international operations" region (comprising Asia-Pacific, Africa and the Middle East) on 7.6 per cent and 3.3 million units.