Quote Originally Posted by zoomda View Post
That's a concern really. I find it odd that the cars current power output is so close to the limit of the diff.
I think what they most likely mean is that as a manufacturer they see no additional risk using the diff in a car that has 187kW. Ie they are equally as confident using that diff in a car with 150kW as they are with a 187kW car. They night deem, say 1 in 5000 breakages acceptable risk, but going up to 188kW might put them into say 1 in 4000 breakages which is not acceptable, so 187kW is where they draw the line.

It would still have a large safety factor engineered into it.