The current Model 3 has a split folding 60/40 rear seat, but based on new information found by Tesla hacker @greentheonly, the interior of the Model 3 may soon get a refresh, including changes to the backseat.
Based on information in the source code of a new manual the hacker was able to get his hands on, the Model 3 may soon get the same rear seat configuration of the Model Y, which has a 40/20/40 folding split.
more gifts from the manual.
Model3 will also have ability to fold just middle section of the 2nd row for carrying of long items (model Y style)
but no child seats in the middle. pic.twitter.com/IN2VRkCMy1
— green (@greentheonly) March 28, 2020
This kind of configuration is preferred to the current 60/40 split in the Model 3 as it allows you to have more variety in how you fold your rear seats.
It also allows you to have a passthrough down the middle of the vehicle for longer objects like ski, a snowboard, or lumber. Unfortunately it will still have that weird nub sticking out when you fold down the middle rear seat.
It is unknown if this configuration will actually make it into the Model 3, but according to @greentheonly the source code says it is for the Model Y or the Model 3.