Call me stupid if you will, but what's the big power issue that you all keep refering too.... I hope it's not that you don't get 141kw at the wheels because, no matter what your car is the flywheel torque will always be greater then the wheels, just simple physics really. Energy is lost through many places in the transition between the enging and the wheel, brief summary, transmission, diff and drive lines, hub and bearings etc, plus loss through sound, friction, heat etc If there are other issues I'd be glad to know what they are but if it's simply the transfer of power to the road, then, keep the research going on improvements, but don't blame the engine.... and on that has anyone tryed installing an L/S Diff of upgrading the clutch plate to see what the effect was??