At a time when the gas turbine was all the rage, Ford experimented with a new kind of piston engine. The free-piston engine had no crankshaft, but one cylinder and two pistons. When running, this ...

We've seen some bonkers engines in our day, and truth be told, this three-cylinder diesel isn't the strangest of the lot. There are plenty of inline three-pots out there, but actually, this is an ...