Modifying aerodynamic performance of a vehicle

摘要

The present disclosure relates to a bonnet (203) for a vehicle (V). The bonnet (203) comprises a front edge (229) and a rear edge (231). A recessed longitudinal channel (205) is formed in the bonnet (203) and extends from said front edge (229) towards the rear edge (231). An airflow modification device (201) is disposed transversely across the longitudinal channel (205) for controlling airflow over the bonnet (203).