On the long weekend I took some video of my hobby.
http://au.geocities.com/albertm1au/GCHRTrikerides.zip (1.4MB)
They are Railway Trolley's powered by 12HP wisconsin industrial engines.
I own both the red ones, the carridge is someone elses.
Oh and if you sqint really hard you can see a Fordforum sticker on the leading trike at the end of the second vid.