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 in WWII. 1  Submarines are very valuable attack vehicles. In World War II they were basically surface ships that could travel underwater for a limited timeâhowever, as you will understand after exploring these pages, German U-boats had a number of considerably more advanced features than those of the United States.