General Motors “Aero X” Experimental Aerodynamic Car General Motors – Vauxhall's parent company in the US – has unveiled a new experimental aerodynamic concept car, called the “Aero X”. Irwin W. Rybicki, GM vice president in charge of the Design Staff in Detroit, said, “The 'Aero X' represents the latest example of the aerodynamic studies which are a normal part of our look into the future. These studies indicate that efficient cars can…