The cambelt on the non-LPG car was changed in 2018 at 226,000 and the current mileage is 240,000.
The cambelt on the LPG car was changed prior to my ownership but I do not know the exact date or mileage. I am looking to change it now based on age as it has been on for 10+ years, although the mileage will be well under 100,000.
10 years or 100,000 miles seems about right to me.