I had taken my car for a service, an Opel Astra 18 16V to the General Motors, Southgate branch. I had taken it back to General Motors 6 times. First it was the cam belt that needed to be replaced, then they said it's jerking because of the spark plugs which was changed 3 times, the car then had no power and was still jerking. Finally after the 6th time taking it back. It seems to be alright now. I will never ever recommend General Motors to anyone, nor will i be using them in future. Their service was disgusting and clearly their mechanics have no clue what they are doing. Mrs Beverley Morrison read full review »