Originally Posted by moondustka

The GTX-R range is just out. Depending on the rear housing selection these are meant to be as good if not better. And more reliable? Or so I've heard.

On another note.. transmission loss is totally car dependent and what transmission you have. The Cosworth stuff from 30 years ago is archaic and will be no comparison to a GTR.

15-18% is about right for an average 4x4 system. The GTR will be much lower than that as it's a much better engineered system. FWD usually has the lowest transmission losses. Transverse mid-engined will be the same. Rear engined will also be similar like Porsche. But every car is different, that's my point.