Windblox - Lexan Deflector for Cadillac XLR This is the number one rated Cadillac XLR wind deflector by WindscreenReview.net. Prevent noise and turbulence in the cockpit when driving top-down; causes no glare Warranted for life + 30 day trial period (with free shipping back from US addresses). Made for speed - this Cadillac XLR wind deflector is rated for usage up to 150 MPH. Wind deflector never yellows from accumulated sun exposure. Made from lexan with 10 year scratch resistant rating. Rated for 150 MPH.