I don't believe you can still purchase lift adapters from Tesla. I have created a CAD drawing of a simplified adapter. It attaches to the car the same way the Tesla one does, but doesn't have moving parts. According to the owner's manual, you must first remove the rear pan from the bottom of the Roadster. Then you use two lift adapters, which lock into two alignment holes in the frame. Here's the relevant page from the owner's manual: I've put together an experimental design for a simplified adapter. The original adapter had this spring and lock mechanism, which is supposed to help you guide the locating pin into the chassis. From what I've heard it's not all that helpful. Instead, the procedure for the modified adapter is to lift the rear of the car slightly using a shop jack, line things up, and gently bring the car down on top the adapters, carefully re-checking the alignment as you gradually lower it. Here's a preliminary drawing package (USE AT OWN RISK - EXPERIMENTAL - NO WARRANTY EXPRESS OR IMPLIED): http://www.teslaflux.com/Adapter.zip Please remember this is experimental. I haven't built them yet, but I do plan to make a set and try it out. Also you may need to modify the bottom of the adapter to work with your lift.