Toward the end of the GTP and Group C era, the quest for downforce lead some teams to a double-wing setup. Jaguar, Toyota, Joest, Peugeot and many others ran short tails and double wings, usually with massive endplates. The large lower wing was just off the trailing edge of the deck and effectively functioned as an extension of the underbody diffuser tunnel system, while the upper wings tended to be more compact and run at shallower, less-drag-inducing angles.