With the reasonable success of the Segundo CV came a larger van- the Triad MV- in 2004. The Triad MV (medium van) was available in many more configurations than any other Duke in the company’s history, and they were given a unique code to help buyers figure out what was what.
The code started with the engine size (20 for the base-model 2-litre, 22 for the 2.2l, or 34 for the top-spec V6); then followed the body length, either S (short), N (normal) or L (long); then the roof height, either N (normal) or H (high); then the number of windows it had besides the windscreen (either 2, 3, 5 or 7) and then the trim (the same as all other Dukes at the time, either E, SL or SLX). For example, in the photo above are a 22NN7 SL (the minibus in blue); a 22NH3 E (at the back); and a 34LN5 SL (on the right). The cheapest Triad MV one could buy was a 20SN2 E, and these were mostly bought in large fleets by couriers; the most expensive would be a 34LH7 SLX, though it is disputed whether anyone actually configured their van exactly like this.
The V6 was intended for the American market, and was the only engine option in American Triad MVs, but it was also the most popular with the Duke enthusiast community as the engine was the same as in the Triad, Penta and Sextant at the time, plus the Quadrant V6 and Septimus concepts.