From this

First came the Supervan I in 1971, based on the running gear of the GT40 Le Mans car, then the Supervan II, and a decade later, you guessed it, the Supervan III. Both sported F1 V8s - the latter giving a colossal 650hp at 13,000rpm
To this

SuperSportVan employs a 200hp 3.2-litre five-cylinder turbodiesel motor
I can imagine the buzz around the office when you get assigned to the supervan project, only to be told it's going to be a 200bhp diesel....