GM may be ignoring the large van segment for the most part, but that hasn't stopped rivals from offering top shelf commercial products.
The Chevrolet Express and GMC Savana used to be mainstays of the commercial market. They are both still in use across a wide variety of industries, but GM is no longer reaping the rewards as the Express and Savana have both been discontinued. The Ford tranist and Ram Promaster have taken massive chunks out of GM's market share.
To put that in perspective, sales of the GM twin vans have tumbled some 36%.
It's thought that GM may tap Nissan once again for a full size van. The new Chevrolet Express is a rebadged Nissan NV, there may be precedent at play in the future.
Stragely however GM is ignoring what Opel has to offer its parent company. The Movano and Vivaro are both highly competitive against the Transit and Ducato (FIAT's version of the Promaster). Considering the success GM's rivals have had selling Euro vans into the US market why isn't GM capitalizing on this opportunity? It may have to do with the cost of importing a federalizing the new van. Then again there are buckets of profit to be picked up in this segment, is GM is ignoring it on the basis of penny pinching?
Yes the Express and Svana certainly have a loyal following, but how long does that last as GM leaves them out in the cold?