What the heck's an Isuzu test mule doing banging around the Midwest? There's no hope that this D-Max, based on the GMT 355 platform, will ever see a North American showroom, since the company recently folded up its tent and left.

What's most likely is that an OEM is doing some development work on the big 3.0-liter four pot turbodiesel. Pickuptrucks.com speculates that Bosch or AVL's Detroit-area outposts might be fiddling with the engine under the ill-fitting hood, as the vehicle has been seen going to and fro some engineering facilites. So, while the idea of a GMT 355 with a torque-tacular turbo-diesel is exciting, it's likely not likely that consumers here will ever get the chance to buy one. Darn.

[Source: Pickuptrucks.com]