Five millionth engine confirms ongoing success of the HDi PSA Peugeot Citroën has produced its five millionth HDi (high-pressure direct injection) diesel engine for Peugeot and Citroën built vehicles.
First Audi began wiping the floor with arch rivals Mercedes and BMW in terms of exterior design. Then it started producing best-in-class interiors. After that, its machines moved to the top of the desirability league.