Solution to carrying bicycles.
Tesla DO NOT recommend any other way to carry bikes except on a roof rack. The Boot mounted ones will fit, but there are problems. 1 is that there are pinch sensors that run down the sides of the boot lid under the rubber seal. so, a hook there will trigger the sensor (very close to the edge and runs the full length.) Second is the fact that the top of the door is glass, and although there are "glass adaptor straps" this is a risk to the rear glass.
The Tesla roof rack is over $600 in Australia. It is a Whispbar brand.
I spent a while in Roof Rack world in Artarmon today. It seems that Tesla have an exclusive on the mounting kit from Whispbar for at least the next 8 - 9 months. HOWEVER, following a lot of research by Roof Rack world, they can make up a hybrid kit that fits perfectly on the Tesla. The components are all Whispbar or a related company. The price, complete with Whispbar Framemount cycle carrier (a $280.00 option over and above the price of the rack) is $655.35. Roof Rack World are happy to say that it will withstand a load of 50 Kg. I am in the process of finding out from Tesla what the load rating is for the Tesla product. Roof rack world will obviously mount the bar and adjust it for you, (a one-time deal), and they will teach you how to get a bike up there. There is a technique. Mine is quite heavy as it is a BMX type. However, i tried lifting one they had on site, also quite a heavy bike, and i was able to get it up there.
All these racks, including that from Tesla are fiddly to install, so it is about a 10 minute mounting process, easier with two people. Also, i guess once you have the rack, then all other accessories can be purchased and used such as roof boxes or snow equipment. Even carrying timber.
I would not plan to leave my rack up there but that is an individual choice.
It seems there is significant price gouging going on at Tesla.
The Tesla rack is rated at 75Kg load.