Reply to "Some good...some bad! It passed the MoT test ... But it over heated on the way home."

All the advice was extremely helpful and gave me a better understanding of my car, the initial concern regarding the overheating could possible of been down to the filler cap not being on properly allowing steam to escape, and with a dodgy temperature sensor reading 220 degrees it lead me to believe the problem was greater than it was, the mechanic evidently could find no further issues but I've still to see the fans operating so further investigation may be required. I have now the concern regarding the knocking noise under the car...it should like I'm running fast with a flat tyre so the car is being returned to the mechanic this afternoon. Part of the enjoyment of running classic cars is discussing the arising problems with fellow enthusiast and I thank everyone for their support.....meanwhile I'll drive the mustang for a while to remind me of the joys of driving a quiet car.....