[kach22i]

Originally Posted by freebeard

<<This Timeline Is Total Proof That Cars And Trains Are Both 'Automobiles'>> Includes infographic. Then here's a Tempo Matador aluminum bodied motorhome.

Fantastic article, I did a college/class room speech on this topic in a public speaking class about 30 years ago.

One of the vehicles mentioned I just had to Google.

The "Puffing Devil" - 1801, by Richard Trevithic
Richard Trevithick General Purpose Engine "Puffing Devil", Image 9 - Steam Scenes


I think that photo supports the statement made earlier by someone else that low speed vehicles like tractors are exempt from being aerodynamic as a matter of function.