Yes,it's at the top middle and is clearly seen,carello is around the bottom iirc.
A guy was offering me a lense for £100 so I compared it to mine and his had no 618 on it,my headlights have the chassis number etched on them from new so they must come from new with carello 618.
The difference when buying is prob hundreds of pounds too and if you want as nice a car as you can you don't just fit anything on it because it came from a sierra.