I had a friend who was an engineer and loved Cummins and Dodge. He was a good mechanic and eventually was contracted by Dodge as a consultant. This was back in the 06-09 period when Chrysler was still hooked up with Daimler-Mercedes. He told me that Dodge signed a contract with Cummins to develop a small block diesel for the Ram 1500 and Jeep. I asked him why they didn't just use the Mercedes small truck European engine. He said he'd advised against it because of the Texas-Midwest bias toward Cummins and against European engines and stuff. Before Cummins could deliver the engine, Chrysler and Daimler divorced and the contract was cancelled. I'll bet the Nissan Cummins engine is theculmination of thework originally done for Dodge. I like Cummins; I owned two Ram Cummins (2003 2500; 2007 3500) before I bought my ED early this year, but I don't like the Nissan big truck. It uses frameless unibody construction. Any frame-bending accident, and the truck is trash. Without a frame, it's almost impossible to get the body straight.