QUOTE(ericread @ Feb 18 2009, 12:14 PM)
Looks to me like the floor has been bent up at some time in the past. Possibly these were cable/washer/bolt points for bringing the floor back down to the original level.
I've seen pictures where a wooden plank is placed under the bottom of the car. Cables are drilled through the wood plank and into the floor and tightened, bringing the floor back to level. Once the floor is back to level, the cables are removed, the plank disposed of and everything looks good.
At least that's the theory.
Eric
Wouldn't it be easier just to get a really fat guy to jump up and down in the front trunk????