Tesla have 4 models in the line up with the MY starting to ship in North America from March 2020 and to the rest of the world over the coming year. While most buyers are familiar with a number of the key differences, we've put together a side by side comparison of all 4 of the current models that Tesla offer. (specifications change over time, this is accurate as of 12 Nov 2020, Tesla are believed to be making some changed for Model Year 2021 and we will update once those details are known.)
It's worth acknowledging that the specification of the cars has changed over the years, so this applies to the current new car specification. Older models, especially of the MS and MX, may not have some of the current options, or they may have been a cost option at the time.
* Tesla continually tweak the performance and range of the cars and the otherwise similar cars can be different, for instance the MS had its EPA range increased by 6 miles in late 2020 but there is no way obvious way to know this from the car.