Eventually, in the second half of the twentieth century, more complex (and less internationally consistent) definitions of fiscal horse power would replace those defined only by cylinder diameters.

The V4C3 shared its 2,250 mm wheel base with the manufacturer's models from the previous year such as their twin-cylinder Type V2C3.

The wide range of different body types offered followed a pattern that by now would have been familiar to many Lion-Peugeot buyers.

In any event, under a new agreement signed in 1905, the residual Peugeot business made Armand an annual payment in return for which Armand consented to the residual business itself producing motor cars under the “Lion-Peugeot” name.

The arrangement continued until 1910 after which (the death of Robert Peugeot's father Eugène having apparently removed a major impediment to the idea) the Lion-Peugeot business and the Peugeot automobiles business were merged into a single company.