This 1905 Cadillac was unbelievable. Once you started looking at one part of it, something else would catch your eye and then another.
 

The drive system is driven with a chain along a straight axel.
 

Here is another look at drive chain. I can only imagine what would happen if you were to drive this down a dirt road or even worse a muddy street.
 

Just in case you need to find out how something works, the owner even had the instruction manual.