The new TN van model series, which included the 207 D, 208, 307 D and 308 (601 series), made its debut between 25 and 29 April 1977. Although the exterior design of this powerful van took some getting used to at first, it was soon accepted as original and, indeed, practical. The short bonnet allowed convenient access to the engine compartment and the driver’s cabin was also easier to climb into.

September 1981 saw the addition of the 407 D and 409 D with gross vehicle weight of 4.6 t to the range. From the autumn of that year, the 88-hp five-cylinder diesel engine fitted in the 409 D was also available for the smaller models.