If you’re looking to open a car roof in Grand Theft Auto 5 on PlayStation 4, there are a few different ways to go about it. The first option is to use the handbrake. Hold down the button and then use the left analog stick to move the car forward or backward. When you’re close enough, release the handbrake and hit the X button to open the roof. Another option is to use a ramp. Park your car near one and then get out. Walk up to it and hit the triangle button to open the roof. If neither of those options work, you can try using explosives. Place them on either side of the car and then get in. When you detonate them, the roof will open automatically. ..