The new plan was to add automobile manufacture as well.

Automobile manufacture only lasted fron 1905-1906.

Additionally, the introduction of the catalytic converter in new automobiles manufactured after 1975 required an adjustment to the fuel standards.

Notable exceptions were 5.7 million automobiles manufactured in 2009 (due to crisis), and peak production levels of 13-15 million units during the 1970s and early 2000s.

Full-bodied cars can vary from full tube frame chassis and aluminium bodied late models to automobiles manufactured by the major automakers with certain modifications as allowed for each class.