Winterkorn said: "I will ask the question this week when I meet with our 600 dealers in the US: 'Do you need the VW Polo?'"

The planned model based on the VW concept Space Up could also go to the US market, he said.

More carmakers are introducing smaller models in the U.S. Earlier this week, Ford said it would introduce a hatchback variant of the next-generation Fiesta small car in the U.S. in 2010. The model is set to debut in Europe and Asia this year.