Maybe... but take it back a step before thinking about the motor. Where's the high pressure/high flow hydraulics coming from to drive it? Crack that one first.
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Well, hydraulic transmission systems were employed in railway locomotives starting more than 50 years ago. The BR class 02, class 22 and the Deutsche Bundesbahn class V200 are good examples of the application of hydraulic power transmission to a self-propelled vehicle.
Note that the primary power was supplied by an appropriately-sized diesel engine in each case.
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