Is it possible that the brakes of car are so perfect that they can stop instantaneously?
A moving car has a lot of energy. To get it to stop, that energy has to be removed somehow, usually by the brakes.
If you try to remove all that energy at once, something will break. Any passengers will be flung forward with destructive force.
That all depends on several variables. Is it driven in the city or mostly highway? Quality of the pads, shoes, rotors, etc installed? What kind of driver are you? Do you run 90 mph stop light to stop light and slam on the brakes or do you anticipate stopping and use the brakes as little as possible? How about riding the brakes? Towing a trailer?
Running into an immovable object will stop you pretty much instantaneously... Otherwise, on the flat - friction. Friction as air drag, friction as rolling resistance of the tires, and a tiny bit lost through the bearings. Aiming the bike up a hill will stop the bike fairly soon too if you're not pedalling.
To maintain directional control during a hard or panic stop. Think about it. If your brakes lock, you go into a skid and lose control of the car. Anti-lock brakes prevent the brakes from locking up, and throwing the vehicle into an uncontrollable skid. This system allows maximum deceleration without having the brakes lock, which, in turn, allows the driver the ability to maintain control of the vehicle while coming to the most rapid stop…
A Perfect pit stop is something that many f1 teams dream of. For all practical purposes a perfect pit stop is one that is completed within 3-5 seconds (for a stop without refuelling) and within 8-10 seconds (with refuelling) wherein the driver comes in and stays stationery for as less time as possible. The Mercedes team and Ferrari team are known for their exceptional pit stop efficiency.