Timing Belts

Over the last few months we have had a few customers needing unnecessary expensive engine work, all because of the engine timing belt failing due to not being replaced at the scheduled interval. Alfa Romeo's such as the 147, 156, GT, GTV and Spider which have either the Twin Spark engine or JTS engine require their timing belts to be replaced every 60,000kms or 3 years. When was the last time your timing belt was replaced?