So I have this disgusting rattling coming from the rear. It’s a tiny rattle, like thin metal vibrating. It’s coming from just rear of the handbrake, can feel the vibrating if I put my hand on the floor of the rear footwells. I can feel it more on the n/s than the o/s. It only ever happens when the engine speed is 1800rpm, doesn’t matter if the car is travelling or stationary, if the clutch is pressed or depressed, accelerating or decelerating. Is there an exhaust bracket in this area that could be loose or is it my worst nightmare the haldex? Here’s a video I took to get an idea