This garage claim to be a Porsche specialist but they are rip off merchants and should not be allowed to be in business. Our car, a Porsche Cayenne, had a horrible knocking under the car and we took it to Jon Mitchell's to get it fixed.

They had the car for weeks and at the end charged us in excesss of £5000 - for fixing the knocking plus a lot of other work we had never authorised!! On leaving the garage, we realsied that they had not fixed the knocking whatsoever as it was exactly the same as when we took it to them...and we found out that Jon and his staff had been using our car for their own personal enjoyment!! They justified this by saying that the car was safer at their home on the drive than it was at the car garage. How unacceptable is that.

We feel totally robbed by this garage - they charged us a phenomenal amount of money for doing absolutely nothing! And they had the audacity to drive the car in their own personal time.

Do not trust this garage with your car - they will take you for every penny!!