Crank to wheels power loss question?

[PAPPACLART]

Between the crank and the rear wheel, motorbikes loose on average, around 12.5% of there power (BHP). I have been told that for cars, its a far greater %...especially for 4wd cars. Does anyone know the average Crank to wheel losses for FR RW and 4WD cars?

Thanks

[PNG]

It also depends on the type of transmission. Autos lose more than manuals, and generally speaking, the more ratios in the box, the more frictional loss.

[2Much4You]

In addition, RWD cars usually lose a little more hp thru the drivetrain than FWD cars.

[hybrid2nr]

Except maybe in a longitudal fwd where there isn't a 1:1 ratio. Also a 9" Ford has 1 or 2% more loss.