[TJay74]

Originally Posted by fastball

If your pads are good and the cable is operational, your parking brake is strong enough to bring your car to a stop from highway speed. In a longer distance than the full power brakes but it will stop your car. You can actually lock your rear brakes up if you pull the brake at speed.

That's how the stunt drivers on shows like the Dukes of Hazard could get the car to do an almost 90 degree turn at speed. They removed the locking gear out of the parking brake pedal so they could turn the wheel full lock at 40 mph, hit the parking brake with their left foot and keep their right foot over the gas, then let off the parking brake pedal and hammer the gas right back coming out of the turn. That locked the rear wheels up to make the car do an almost perfect 90 degree turn at 40 mph without stopping the car's momentum.

You are comparing old school emergency brakes to modern parking brakes. The parking brake shoes are not nearly as big as the old style ones where since they used the regular brake shoes. Plus the Camaro's newer style electronic one doesnt work like that either.

And the modern electric parking brake do go out of adjustment just like the old cable driven ones do.