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.
Submarines, Inc. & Associated Firms. U.S. Submarines, Inc. founded in 1993. The company developed the concept of. the personal luxury submarine and has also designed deep submersibles for. marine science research, diesel electric submarines, tourist submarines with both. steel and transparent acrylic pressure hulls; military patrol and surveillance.
The United States Steel Corporation (NYSE: X), more commonly known as U.S. Steel, is an American integrated steel producer headquartered in Pittsburgh, Pennsylvania, with production operations in the United States, Canada, and Central Europe.