When I got my Model S last October, we had a problem. I wanted to keep the interior nice and my wife wanted to be able to let our dog come along with us on our newly-encouraged adventures. She solved the problem by creating something we call the BackMat. I posted these photos at post 800 under Owners Delivery Stories, Photos, and First Impressions, letting folks know that Roseanne was willing to make a few more BackMats for Model S owners. Here are the specs on this product: Tesla Model S BackMat : Custom made durable cargo area carpet liner and protector Precisely fits back cargo compartment of Tesla Model S with seats up or down High quality polyester fiber made from 100% post consumer recycled plastic bottles Tough but light weight indoor-outdoor carpet Mold, mildew, and stain resistant Excellent color-fastness and UV protection Vacuum or shake out, rinse with a hose, spot clean with mild detergent, air dry Self adhering to Tesla's carpet with velcro-like attachments at strategic points Easily allows vehicle seats to be moved up or down without repositioning the BackMat Priced at $100 plus shipping (estimated $15) and available in split seat style (to allow only one seat down) for additional $10 If any TMC members are interested in this solution to how to keep the Model S pristine while still taking your canine friend along, you can e-mail [email protected]. Here is one more picture of the BackMat made in a taupe color: - - - Updated - - - After setting this thread up, I just discovered that Tesla has created a weatherproof mat for the back cargo area (now out of stock) that sells for $200. It will be a better solution for those who need a waterproof mat and do not need coverage to the sides of the compartment. The advantage of our BackMat solution is that it covers the sides of the cargo area (protecting from dog hair) and the backs of the second row seats so that they can be folded down for larger cargo area that is also covered. It is also a bit less expensive. Our BackMat allows easy access to the side cubbies and the rear trunk well.