Steyr Motors originated in the diesel engine division of the earlier Steyr-Daimler-Puch group.
In cooperation with the Dutch company Mastervolt, Steyr Motors is the leading manufacturer of hybrid propulsion systems for pleasure boats.
[7] The principal products are the STEYR M1-"Monoblock" engine family which is the result of a long development process that was started by Steyr-Daimler-Puch in the 1920s.
It allows a clean and silent propulsion within a harbor because the boat can be driven purely by its electric motor.
The electric motor can also be used in a 'boost'-mode to support the diesel engine in order to achieve better acceleration.