Having Developed The Grandfather Clock Engine, Another Question Came Up: What Kind Of Vehicle Should First Be Equipped With This New Invention? The Choice Fell On A Two Wheeled Wooden Construction Into Which A Smaller Version Of The Grandfather Clock Was Installed. It Became Known As The ‘Reitwagen’ (Riding Wagon) Which Can Be Seen As The World’s First Motorcycle. The Grandfather Clock As A Fast-Running Engine With A Weight To Power Ratio Which Was Unparalleled At That Time Was Used In Many Applications In The Years To Follow. This Engine Provided The Base For Another Evolution Of The Combustion Engine Which Wilhelm Maybach Conceived – The Combination Of Two Cylinders.