Fiat and PSA Peugeot Citroen recently announced plans to invest approximately €700 ($922) million into the Sevel plant "in preparation for a wider range of products in order to meet evolving customer and market demands."

Today we're getting out first glimpse of this wider range as our spies have caught a prototype of the next-generation Fiat Ducato, Peugeot Boxer, Citroën Jumper and Ram ProMaster.

Caught heavily disguised, the van adopts a new front end with a more upright fascia. We can also see a revised grille and smaller headlights.

Little else is known about the upcoming model but it could be launched next year with a variety of diesel engines.

2014 Fiat Ducato, Peugeot Boxer, Citroën Jumper & Ram ProMaster spied