I was disappointed with the factory floor mats. The driver's side mat was always sliding around every time I got into or out of the car, and sometimes bunched up by the pedal. And the passenger's side mat had that infamous flop issue ("erectile dysfunction", as some one aptly called it on this forum) every time I did a Tesla acceleration (you know--the type that ICE cars only dream about). Burlingame SC confirmed that I had the latest version of the mats (I took delivery in early September). Based on recommendations in this forum, I looked at Lloyd's and Coverking, but neither of them had a good system to secure the mats. (Although both of their websites have photos of the Tesla mats with grommets, they have a disclaimer that says that they do not come with grommets, and I confirmed that by calling each of them.) That got me a little nervous that the hook/screw system might be a problem for Teslas, but Telsa Ownership confirmed with Telsa Engineering for me that the hook/screw is not a problem and cannot puncture into the battery compartment (in fact, Tesla sells the all weather rubber mats with the hook/screw). So I continued my research, and the only company I could find that sells Tesla floor mats with a grommet and hook/screw is South Coast Accessories at teslamats.com. I ordered the 52 oz mat combination, and couldn't be more pleased. They are super plush, thick rubber and match the color of the factory carpet. And they stay in place--no more sliding around or flopping down. Highly recommended.