Can someone provide a pointer to the dimensions of the model y?
If you go to the Y page and scroll down to the bottom, there is a FAQ tab. Perhaps you will get your answers there.
I thought I heard during a test drive YouTube that the Tesla employee mentioned that the entire dash area is same as the 3, meaning to me that inside dimensions gotta be darn close to being the same as the 3.
Now being a third row option in the Y, that may account for a bit of added length.
If you watch the video again, you also here the Tesla rep say that the seats are out of a Model 3, but are on risers. Since as that guy said, they used the same dashboard, that means the width is the same as a 3. All they did was raise the roof of the 3, raised the height of the interior and created a hatchback. Without actual listed specs pertaining to overall length, we don't know how much longer if at all, the Y is compared to the 3.
The Model X is based on the S, but the X is a bit longer. I just don't remember by how much.