This lives up to its namesake.
The Wow Dining Table
at The Conran Shop
is probably the best extending table we've ever seen. There are no "hidden parts" that don't keep up with the aesthetic quality of the exposed parts of the table.
The table consists of two equal beech wood leaves on an aluminum frame. When folded shut, you've a 47x30" table. When unfolded, the size expands to 82.5x30". A pivoting arm offsets the tabletop to recenter it when opening and closing. Sorry for the small photo - there don't seem to be any large ones out there.