Discover the obscure Vector M12, the sole American sports car ever produced with a V12 engine and manual transmission.

The Vector-R P-19H engineering model during an aborted launch in April. The rocket flew what the company said was a successful, but low altitude, test flight May 3. Credit: Vector Updated May 5.

The second Vector-R rocket lifts off on a low-altitude test flight from a site in Camden County, Georgia, Aug. 3. Credit: Vector WASHINGTON — Vector, one of dozens of ventures developing small launch ...