How should a driver respond if a tyre suffers a high-speed blowout during extreme summer heat on a highway?

1. Brake hard at once and add the handbrake to shorten the distance before control is lost
2. Steer firmly the opposite way to counter the pull, then brake once the car is straight
3. Grip the wheel firmly with both hands, ease off the accelerator, avoid hard braking, and guide the car to the shoulder
4. Switch off the ignition so the engine stops driving the wheels and the car slows on its own