Gores Metropoulos Inc. (NASDAQ: GMHI) has agreed to a reverse merger with Luminar Technologies, another lidar technology firm aimed at the autonomous vehicle market. Luminar has raised $420 million in venture funding since its founding in 2012, and Gores Metropoulos led an August round that raised $170 million. Luminar will have an estimated value of around $2.9 billion and receive $400 million when the combination with Gores is completed.