Close to the most trainlike car I've come across, David at The Old Motor found a cool old invention that went 60 mph

http://theoldmotor.com/?p=90291 found on http://blog.hemmings.com/index.php/2013/07/20/four-links-missing-cadillac-concept-car-life-size-tonka-truck-tonka-truck-museum-syd-mead-80th/

connections between early vehicles and aircraft, multiple innovators used a variety of car and motorcycle parts to power early aircaft

1958 home made helicopter with a Triumph engine

1925 Henderson/Indian engine with a Ford Model T front wheel spindle used as prop shaft

and a engine from McCulloch for a target drone project. McCulloch supercharger and Magneto

all found at the San Diego Air and Space Museum  loacation at the Santee airstrip at Gillespie Field