An accelerative overtake is when you’re driving behind another vehicle and drive at about the same speed and then forcefully accelerate in order to overtake that vehicle. This typ of overtake is not prefered because more fuel is being used as compared to the so called flying overtake. When you do a flying overtake it means that you approach the vehicle in front of you at a high speed, then you quickly change to the left lane at a proper distance behind that vehicle in order to then drive past it. Due to accelerating to a higher speed it means that you need a shorter distance to overtake the vehicle. Besides, as it doesn’t involve braking nor explosive acceleration, because you gradually accelerate to a higher speed, it’s also considered an eco-friendly way of overtaking and is therefore preferred.