No, I'm still gonna have to call BS on this.
Take a look at this:

This is what happens when a 4500lb SUV reverses into the side of a 240sx at about 5mph, and pushes it about 3-4 feet laterally.
Please note that the damage is LESS extensive than nissantuner22's.
Also note that the damage at the extreme rear of nissantuner22's is in an 'in and up' configuration. Even if you were running Super Swampers, the damage would still be FORWARD of where it is, and get less severe as you get away from the hub of the wheel.
Now, sure, fastbacks and coupes are different, especially in the rear. However, they remain structurally VERY similar in the wheel arch area. There are three layers of sheetmetal there. One for the wheel arch, one vertical support, and one of the outer skin. Now check this out:

the 2 circled areas are the result of 20+ minutes of me hammering with a 10lb piece of iron (a jackstand top) I was doing this so her car could be driveable with her wheels on there and not rub the tire and cause a blowout. Now, I'm not a big dude, but I was applying some WICKED force to that sheetmetal. All 3 layers. And that was the result.. Me moving it out from the body maybe 3-4mm. Now sure, tires have a goodly amount of mass, but even if a tire weighed 200 pounds instead of 20-30, the force it'd apply to the body would be radially away from the hub! There isn't a way for the OUTSIDE of the body to be caved in like it is. Let's say that the wheelwell sheetmetal was caved in to the point that it started to take the other sheetmetal with it. the first place that would start caving in would be the arch of the wheelwell, since that's the nearest meeting point.
That's still not happening.
Last, not that the caving goes all the way to the doorseam, just like nissantuner22's.
Sorry to have to call

on you like this, but I've shredded tires and seen plenty of shredded tires and blowouts on S13s, and the only time they ever get dents like that (in MY experience) is when the car hits something.