I would welcome your advice regarding my Alfa Romeo 156 T-Spark. It was registered in 2000 and has now covered just over 50,000 fairly trouble-free miles. It has been regularly serviced by an independent guy and yesterday the car failed when the cam belt broke. Would you kindly confirm for me when this should have been changed? Also, I feel let down by the fact that my mechanic has never pointed this out to me, and obviously the car is now 12 years old and I previously was not aware of this necessity.