On the '97, they had neat fold down
panels that locked into the second row seatbacks
but came down to fill the gaps. They were carpeted
to match the floor.
Stephen
Not to hijack this 2nd-generation thread, but my 2000 has this feature. Unfortunately, the results aren't really "flat" -- there's a drop of at least 1/2 inch behind the 2nd row seats, which is murder on my back if I try to lie on it. I'm thinking of putting a low-profile cot in there....