The SCCA Pro Racing World Challenge and Continental Tire Sports Car Challenge racing series, run by the Sports Car Club of America, and the International Motor Sports Association, respectively, utilize modified production-based cars, sports cars, and touring cars, similar in spirit to the original Trans-Am racers.
U.S. Submarines, Inc. U.S. Submarines was formed in 1993 and has had a continuous internet presence since 1996. Recently we had a dispute with our internet service provider and have had to switch ISPs. We have a new Web site under development.
Submarines were first built by Dutch inventor Cornelius van Drebel in the early 17th century, but it was not until 150 years later that they were first used in naval combat. David Bushnell, an American inventor, began building underwater mines while a student at Yale University.