The steering angle refers to the degree or amount that a vehicle's front wheels are turned in relation to its straight-ahead position. It is an important measurement for determining how much a driver can turn their car and it also affects the handling of the vehicle, especially during cornering. The steering angle is measured by taking a reference point on the road ahead of the vehicle and then measuring the angle between that point and the direction in which the front wheels are turned. A larger steering angle means that the driver can turn their car more sharply while a smaller steering angle indicates that the car will be easier to handle at high speeds but may require more turns when making tight maneuvers.