A new joint venture has redrawn the map in one of the industry's fastest-growing and more fiercely competitive sectors - front-end modules. The partnering of Hella-Behr and Plastic Omnium, the French bumper manufacturer, poses serious strategic questions for several suppliers. Among them is Valeo, Plastic Omnium's partner in a joint venture that makes 800,000 front-end modules a year for the new Renault Megane platform.