Yakima's fit guide says that the Whisbar rack is not compatible with the Model S. They are correct, however, with a very slight modification it will fit perfectly. The only incompatibility is that Yakima uses a 6mm threaded rod to connect the rack to the cars mounting point. Tesla's mounting point is 8mm. Simply replace the 6mm threaded rod and nut with a new 8mm and all is good. You do have to ream out the hole in the Yakima mount very slightly slightly. I used stainless steel threaded rod and wing nuts to prevent rust or oxidation. Hard to find at the local hardware store. In desperation I tried Amazon and found a 30cm piece. You need 4 pieces at 8 cm (3 inches) each. The Yakima parts are: Whisbar S28 Kit and Smart Foot K380w kit. Installation and on/off are very easy. I am using an Inno Cargo Box for skis and Inno Bike racks.