I wondered if anyone else has had this problem. Intermittently when I am parked on an incline, the automatic handbrake doesn't hold the car, and I have to use the handbrake manually to balance the clutch and move off. However, occasionally when doing this, the manual handbrake won't hold at all, and the car just revs as if isn't in gear, and obviously when you take your foot off the brake it just rolls forwards or backwards and there is no way of stopping it except with the footbrake.
While on holiday, we had to engage the help of some hefty chaps to hold the car, to stop it rolling into a stone wall, and no amount of cajoling would make the handbrake engage - just lots of revving.
Any ideas? Is this a mechanical or an electronic fault do you think?