@Imperious:
A game called ‘Gigantan’ was remade and does have open bed trucks. Check BGG
Close, but try GIGANTEN, 4 players : http://www.boardgamegeek.com/image/138389/giganten
Only four trucks, too big though. Lot of oil derricks, 3 barrels and 5 locomotives.
And the new version BLACK GOLD, 5 players : http://www.boardgamegeek.com/image/1018738/black-gold
J. 8-)
Those are some interesting pieces. I like the locomotives.