Originally Posted by Effduration

This item claims to be specifically designed for the E53 and covers the sides and seat back as well. Looks a little loose-fitting to me...Maybe worth a try...ask the seller for better pics

BMW X5 Cargo Liner Trunk Mat Dog Guard - Tailored - Gen 1 E53 2000 to 2006 {010} | eBay https://ebay.us/2DYTAx