Peugeot 508 RXH diesel-electric hybrid debut at the 2011 Frankfurt Motor Show in September.

The Peugeot 508 RXH diesel-electric hybrid has been officially revealed ahead of its world debut at the 2011 Frankfurt Motor Show in September.Featuring four-wheel drive via Peugeot's HYbrid4 technology, the 508 RXH comes packing the automaker's 2.0-liter HDi diesel engine along with a 28-kilowatt (38-horsepower) electric motor.After introducing its sedan and station wagon models, Peugeot has