I have learned that Tesla owners care about the environment, and are better at math than some. Also reflected that the 3 is about as good as it gets from a drag/range perspective with coherent seating arrangements. This thread is to explore what derivatives of the 3 interior could be made to get 3 in the car,7 to make the energy intensity of a commute in a Model 3 better than any known form of mass transit. This spreadsheet shows energy intensity by mode: http://cta.ornl.gov/data/tedb34/Spreadsheets/Table2_14.xls Load factor is key (the load column says 1.6 for cars). A full car that parks at work, then drives home full as well, would be multiples better than any of the averages shown here. I think people will ride in the same car day after day if one creates a Roseto effect experience - that means no yelling. Roseto effect - Wikipedia, the free encyclopedia But all cars today require all passengers to yell if all other passengers are to hear. To be heard at 4 feet in a normal speaking voice, the background noise needs to be 53dB. All modern cars are over 60 dB at 70 mph. I see two ways to improve the model 3 for peer seated multi rider commutes: make it quieter than any vehicle known to mankind, or seat the second row facing backwards. What ways does this community see?