A vehicle comprising: a passenger compartment; a nose region forwards of the passenger compartment, the nose region having a top surface and a front; and a duct running from an inlet to an outlet to permit air flowing into the inlet to be channeled to the outlet, the inlet being positioned at the front of the nose region below the top surface and the outlet being positioned on the top surface of the nose region behind the inlet, the outlet being oriented so that air flowing through the outlet is directed in an upwards direction, the upwards airflow causing disruption to a rearward airflow moving towards the passenger compartment.