In response to a shortage of diesel engines in Europe, Delphi is planning to invest more than $300 million in expanding its diesel systems capacity, according to the Financial Times. The US-based auto components group is planning a four-fold increase in the production of components for "common rail" diesel engines to 2m units a year. It is reported that the investment will be concentrated at three of Delphi's European production bases: La Rochelle and Blois in France, and Barcelona in Spain