Two Sedans with some similarities, but otherwise different in most aspects such as the powertrain, starting price, fuel economy, model year, market segment, and ground shadow size. First of all, there is a $46,590 difference in the base MSRP. The 2020 Tesla Model S, a newer vehicle by two model years, has a higher starting price than the 2018 Honda Clarity Plug-in Hybrid. Also, you get 65.6 more mpg with the 2018 Clarity Plug-in Hybrid than with the 2020 Model S. In addition, the Clarity Plug-in Hybrid is slightly smaller than the Model S. Among similarities are the body structure, height, and maximum occupancy.