[Callthecops]

When you press the brake pedal and let the wheels (almost) spin
you create an extreme amount of stress on all the drivetrain components.
Especially the first gear, which is a very small gear with a small number of teeth.
When these teeth start to slip, or even worse when they break, you will get a avalanche of problems.

My teacher 'drivetrain and gearboxes' does warranty and failure expertises for BMW, Audi and Mercedes.
He claims that car manufacturers will not warranty parts when 'abused'.