I have a 2012 Kia Sorento and have moved 3 different Williams WPC machines and a Bally Doctor Who in it. It's a close shave, but they all fit with about 1 inch in height to spare. Keep in mind a couple things:
1. The comment made about cardboard is critical. Put it just inside the car, under the machine with the machine resting on it. You can then go around to the side door and pull the cardboard in while someone else pushed in the machine from the back. It'll slide right in without screwing up the seat backs.
2. If your 2nd row is like mine, the seats do not go down totally flat. Not an issue. Make sure you put the machine in coin-door first. The backbox should be at the back of the car at the hatch. Make sure to stuff a blanket or something between the head and your back window so you don't break it if the machine decide to slide backwards.
3. My Kia's hatch opening isn't exactly square. It has rounded edges, so you'll need to take that into account for height.
This stuff said, I have to admit that I do not know the dimensions of SS. But if it's the same as the early 90s stuff Bally made (non wide body at least), it'll fit.
I'm taking a break from restoring some cast iron skillets at the moment, so I'll go measure mine shortly and will let you know.
Selfishly, I'd love to know if you can fit it, because SS is on my someday list.