There have been various attempts over the past few years to come up with the most environmentally friendly vehicle. The hybrid car has become a widely accepted car to own. In fact, many individuals have traded in their large luxurious SUVs and Hummers for the smaller, fuel conserving cars. However, the newest attempt to save even more fuel is far more impressive, if it will work that is. This would be the first air car that runs on compressed air and fuel. Although it may sound great there are plenty of those who have their doubts.