In this Jan. 21, 2004 file photo, operations technicians work the Saturn Ion final inspection line at the General Motors Saturn plant in a Spring Hill, Tenn. (AP Photo/Mark Humphrey, File)

General Motors is spending another $167 million at its Spring Hill, Tenn., factory so it can build two new midsize vehicles, the company said today.

The investment is on top of a previously announced $183 million investment. The spending is expected to create or keep 1,800 jobs.

"GM's announcement is more evidence that over the last thirty years Tennessee has become the best place in America to build cars and trucks. Congratulations to Spring Hill workers and Governor Haslam for creating the environment for attracting these good new auto jobs," said U.S. Sen. Lamar Alexander, R-Tenn.

The new vehicles could be versions of the Chevrolet Equinox and GMC Terrain crossover SUVs, the Detroit Free Press said.

The plant now makes the Equinox along with a factory in Canada. Although they're selling well, they were last reworked in 2009. They compete against newer vehicles like the Honda CR-V, Ford Escape and Toyota RAV-4.

Spring Hill is a former Saturn plant that now employs about 2,000 people.