Not every time. Car needs to have done a few miles before it starts, then pretty much every time you brake, including just pressing gently on the pedal and getting no braking action to feel. Brake pads could have been a good un, but not if they are the same. Still thinking about the r32 setup too.
I thought it was coming from in the car, around the brake pedal area, but was driving last night with windows down and was definately from outside. Google search shows an old thread on here mentioning sub frame bolts and a kit you can get, 2 new bolts and 2 shims, so might have to try that.