For muscle cars to survive the challenges set by Congress, it is well understood that significant engineering obstacles will have to be overcome. One of those directions is the expanded use of lightweight materials. New engine technologies, such as direct injection, have made significant contributions already, but the stakes get higher as the 2020 deadline approaches.

Reducing the cost of existing advanced technologies, such as hydroforming and even more advanced materials, such as metal matrix composites, can also help support the ambitious goals set by the Energy Independence and Security Act of 2007. Along the way to achieving the mandated forty percent improvement in fuel economy, manufacturers cannot sacrifice anything in the way of existing safety requirements.

It is all a very complicated situation that have some fearing that a Chevrolet Sonic or a Ford Focus will be the large family car of the future. Others see vehicle performance being totally controlled by the onboard computers in order to maximize economy, potentially by overriding gas pedal inputs from the driver.

As a result of all this, we’re pleased to report that a Camaro concept car was demonstrated last week at the Salon del Automovil 2011 in Buenos Aires, Argentina. A demonstration session was captured in the video below. Somehow, this has slipped under the radar of local spy photographers or else it has been developed outside the United States. While the concept shown may be a radical one, it will provide inspiration for many as the 2020 deadline approaches.