I wish every automaker would make a detailed extrication handbook for their vehicles. Most provide a basic guide for the hazards in their vehicles. However, Mercedes-Benz has gone above and beyond. Take a look at the link below. The Mercedes-Benz guide is 187 pages full of very useful information that can be used on other makes and models.
Below is an example of what the guide shows:
In the S-Class (model 221), certain areas of the Apillar are particularly well-suited to being cut through. Such areas are clearly designated with “CUT” marks in the windshield.
Cutting the A-pillar free in the area of the roof frame on this vehicle.