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.
The US Navy has a total of 18 Ohio-class submarines which consist of 14 ballistic missile submarines (SSBNs), and four cruise missile submarines (SSGNs). The SSBN submarines are also known as Trident submarines, and provide the sea-based leg of the U.S. nuclear triad.