There are speed cameras everywhere here now including many motorways. As an example the journey to my nearest Ferrari dealer, who is just over an hour away, involves me travelling through well over 40 speed cameras. It is just insane.

The area around where Harry lives has 50 MPH (80 KMPH)  limits on many roads and is congested in the summer with tourists. There is just very little chance to use the power of a V8 petrol in a daily car like this and it gets very tiring constantly filling it up with fuel due to the low MPG when you aren't able to utilise that performance daily. The diesel is by far the better real world option for his intended usage. When you factor in the much lower finance costs on top it is not exactly a difficult choice. He gets to drive so many other performance cars each year carrying out his reviews and he usually has the use of them for a week or more at a time so he is not exactly short changing himself in the fun driving department.