400 brake from a cossie is more expensive and not as reliable as 400 brake from a skyline is i thinkwhat the point stave etc were making
to go beyond this you still need lots of money but on the skyline you just bolt on a decent turboto break this thershold, on the cossie you need to do lots more, therefore the cossie gets less and less reliable the further up the power scale you go compared to the skyline