After seeing some internet rumors about HD Tundras, some with Cummins V8 diesels, DRWs, etc, I'm wondering: Do you know anything official from Toyota? Do you have a link?
A lot of misinformation is floating around on the Toyota's. I thought I read somewhere that Toyota decided not to use the Cummins at this time and continue with gasoline engines (cannot find the link). Like you pointed out, the DRW was at a SEMA almost 10 years ago yet the pictures of the interior and exterior get recycled into new hype. Originally they were rumored to fit a Hino diesel...