Aerodynamic Items for BMW M coupe Listed below are some of the aerodynamic items for the BMW M coupe. AC Schnitzer Front Lip Spoiler, Part Number: 51713720 Rear Roof Wing, Part Number 51713736 Rear Roof Spoiler, Part Number 51713734 AC Achnitzer Front Lip Spoiler & Rear Wing AC Achnitzer Front Lip Spoiler & Rear Wing Rear View - AC Achnitzer Rear Wing Front View - AC Achnitzer Front Lip Spoiler Front View - AC Achnitzer Front Lip Spoiler AC Achnitzer Rear Wing AC Achnitzer Rear Wing