1885 de Dion steam car...

[marcus]

...still working. Interesting to see the same close set rear wheels, pre-dating Isetta, Heinkel and others by almost three score years and ten:

http://www.youtube.com/watch?v=riO3UUC9qo0

[Barry]

The trouble with youtube is that there are lots of interesting links for us nutters.
From your steam car there was a steam bike and then.........................

http://www.youtube.com/watch?v=fU_HYXOgbRw&feature=related

And then

http://www.youtube.com/watch?feature=endscreen&NR=1&v=PbwnI_SUU38

http://www.youtube.com/watch?v=RgZTqb0A-2U&feature=related

[marcus]

Great stuff! I would guess there is quite a bit of counter-torque from a radial aero engine! The logical solution would be to fit two, rotating in opposite directions. Well, if you are going to go that far you might as well fit 4 aero engines to your motor cycle!

[Big Al]

...still working. Interesting to see the same close set rear wheels, pre-dating Isetta, Heinkel and others by almost three score years and ten:

http://www.youtube.com/watch?v=riO3UUC9qo0

The original stick shift. Yep, many diversions if you have the time to look.