Toyota Motor said it is considering expanding its manufacturing capacity in North America and is reviewing locations.
"We are looking at sites," spokesman Dan Sieger said, but declined to reveal details.
Toyota, which saw U.S. sales rise 13% in the industry's largest market, will have the annual capacity to build about 2 million cars and trucks by 2008 in 15 plants across North America.
The Japanese automaker is rapidly gaining U.S. market share, outpacing DaimlerChrysler in 2006 to grab the No. 3 spot.