When driving my Mk6 si on motorway, if i'm doing 60 or above and brake the car dips to the left - you have to be on the ball or it'd turn left.

The car seems to steer itself @ low speeds on bumpy roads.

My dad has noticed little metal ball bearings appearing on my drive - and the other 2 cars are 55 plate cars. I don't know if they are from the builders who put our drive down - but why would they appear on my drive, surely when driving they would all go and something would stop working, if when ever I pull up one falls out.

Any ideas? Mainly about the dipping to the left issue