Bought a ringer? That's very unlikely, me thinks. Much more likely, as was [is] the case with me is that something has gone slightly off with your back long ago and that it is your posture whilst driving your car aggravates it. I doubt that your car is actually the cause of the problem. Obviously it is your driving position which triggers the pain and, since the top of your neck is not in contact with the seat, the problem is probably something to do with your lower back and the position of your legs whilst driving. My difficulties were actually caused by something so far back that I can't remember it. Almost everybody has 'bad posture' and therefore a 'bad back', but are fortunate enough never to experience any pain because of it.
I know from my own experience over the years that almost everything ache and pain wise seems to be because of a slight misalignment of the spine, which goes completely unoticed in everyday life until something new comes along that triggers pain. In actual fact, almost all cars with a clutch pedal are 'misaligned' for real comfort, since the break pedal in always set too far to the left. Nevertheless, the Cmax, in this respect, is at least as good or better than most. Believe me, I know.
Anyway, first, I would check if you have a complete car, just to put that 'ringer' idea to bed. The AA or RAC will do that for you from the comfort of your PC. Second, find a good, qualified Osty and tell him/her your problem and exactly where it hurts when you drive. Before you go get someone to put a sticking plaster on exactly where the pain is. It is suprising how effective a couple of sessions of back manipulation is. If the Osty find the spot, or which disc is slightly out, it will hurt like **** for a few hours, but the relief after that is pure bliss, and the treatment is much cheaper than buying another motor.
Please let us know how you get on.
Edited by: romseyraver