what is the life expectancy in miles of a vw golf petrol engine?

the car is a vw golf 1.8gl 1996

I have a 1995 VW Jetta..160,000 + miles
and a 1985 VW GTI with over 250,000+ miles and both engines are original, run strong, and pass smog with flying colors…The key to long life in any car is "Good Maintenance"