And I am not sure what you are calling super strong and normal. The power brake system in the car is unlike anything used on a modern car as far as pedal travel and feel. Many people describe the power brakes as being very sensitive. Minimal pedal travel was one of the sales features when Packard started using the Bendix Treadlevac system.
On a properly adjusted and functioning system full travel of the brake pedal is about 25mm before all shoes touch the drums, can move no farther and pedal is at a hard lock. A light push that barely moves the pedal will give a gentle slowdown and stop while a hard push will have you stopping so abruptly you feel as if you will be going thru the windshield.
I don't know if you will be able to watch YouTube in Switzerland but there is a
53 commercial showing how the driver just needs to swivel his toes from the accelerator to the brake pedal and barely touch the brake pedal when coming to a stop. That brake unit is the same as the one on your car.
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