Sideloader - comes in Stand on End Control, and Sit Down End Control, which is the most numerous. It may be Electrically Powered, or have an Internal Combustion Engine. Engines may be diesel, kerosene, gasoline, natural gas, butane, or propane fueled, and may be either Two Stroke Spark Ignition, Four Stroke Spark Ignition (common), Two Stroke Compression Ignition, and Four Stroke Compression Ignition (common). North American Engines come with advanced emission control systems. Forklifts built in countries like Iran or Russia will typically have no emission control systems. Some Sideloaders have Hybrid drivetrains.