2012 Peugeot 508 RXH. Diesel-electric hybrid and distinctive high end appeal combine to offer an original view of the world of all-road vehicles and enhanced driving pleasure: the new Peugeot 508 RXH. This demonstrates the modern and enhanced top-of-the-range vision for Peugeot and will be unveiled today in preview. The style of the Peugeot 508 RXH and its innovative HYbrid4 drive unit