Windblox - Smoke Tint Lexan Wind Deflector for BMW Z3 This is the number one rated BMW Z3 wind deflector by wind deflectorReview.net. This wind deflector is the smoke tint, a hue of gray Warranteed for life plus 30 day trial period (free shipping back from US addresses). Maximum wind blockage. Prevent noise and turbulance in the cockpit when driving top-down; causes no glare Made from lexan with 10 year scratch resistant rating. Rated for 150 MPH.