Quote:
Originally Posted by monster  AWD in general looses more power in the drivetrain simply because there are more components in the drivetrain to move, and there are increased frictional lose in the drivetrain because of those additional components |
It is not just additional frictional loss, there is the much higher rotational mass. The engine has to now turn 4 wheels and tires instead of just 2 and of course 4 brake discs, an additional axle, a larger drive shaft and usually another clutch, another differential and even worse - a viscous coupling. And all this loss is in percentage, so the faster you go the higher the loss.