The rosey revere is a simple diesel engine that uses no oil or gas to generate electricity, instead relying on a simple combustion process.
It is so simple that even its creators admit it was impossible to design an engine with it.
But its popularity with enthusiasts has not been a one-off, and it’s now being used in a range of applications, from the ultra-low-cost plug-in hybrid car to a range-extender electric bike.
The rosterre is also used to make up the bulk of a vehicle’s electric motor, powering it from a range between 10kW and 20kW.
So far, it’s used in two different electric vehicles, a plug-inset electric bike and a range extender electric bicycle.