"my car is in perfect condition, only minor stuff going on, worn flex discs, and one or two bushings that needs to be replaced, can the weird braking be caused by the bent steering knuckle??"
None of these are minor problems, and your car is not in good shape. As others pointed out, these known problems are also a good indicator that you have more. All these major issues might normally not result in noticeable problems at low speed, but at 230 kph they could kill you and anyone you take out in the process. Until you admit the issues, you will not find advice here useful.