What is a slipstream in grand theft auto 5?

In Grand Theft Auto V, a slipstream refers to the aerodynamic effect that occurs when a vehicle closely follows another, reducing air resistance and allowing the trailing vehicle to gain speed. This mechanic is especially useful in races, as players can draft behind opponents to boost their own speed. Engaging in slipstreaming can provide a strategic advantage, enabling players to overtake rivals more easily. The effect is visualized by a speed boost indicator when in close proximity to another vehicle.