Disclosed herein are embodiments of an apparatus and method for determining a drift of a vehicle. In one aspect, a vehicle testing apparatus for determining a drift of a vehicle from trajectory data indicative of a trajectory of the vehicle during a drift test comprises: a processor configured to execute instructions stored in a memory to: determine an initial local vehicle heading based on an initial trajectory dataset of the trajectory data, and determine, for the vehicle, an amount of drift indicative of a deviation of the vehicle from the initial local vehicle heading based on a comparison between the initial local vehicle heading and a drift test dataset of the trajectory data.