To those who replied being helpful, many thanks indeed.


To those who believe they know better than Mercedes Benz (in their stellar cost-plus days of engineering), I didn't ask for opinions.

All R129 Mercedes have the mountings for rear seat lap-belts. Rear seats were an option in some countries, standard in others, outlawed in others.
If Mercedes Benz saw fit to design and engineer rear seats in these vehicles, I'm happy with the idea.
The pop-up roll bar is not an issue - press the button, roll-bar comes up and stays up over the heads of the shorties in the rear.