Henschel's plane came in 12% overweight with the engines 8% underpowered, and understandably, it flew poorly.
There's a common misconception that efficient engines are underpowered engines.
The Maiden Saginaw suffered from nearly zero forward visibility and an underpowered engine for its size.
In addition to the underpowered engine, the second problem of the Dr12 was the heavy axle load, which could cause damage to lightly laid to track.
His car, an uncompetitive year-old model with an underpowered engine, was darting past newer and supposedly faster equipment.
The underpowered engine made it impossible for de Silvestro to be competitive, resulting in consistently poor qualifying and race results.
With limited funds and underpowered engines it was a difficult season with little opportunity to shine.
At the same time the test flights demonstrated a number of disadvantages of the 112 in general, notably the underpowered engine and poor speed.
It suffered from an underpowered engine, and problems because of the rush to design and build it.
The car performed better than expected, but fell out of production due to its underpowered engine.