Has anyone heard any hint that a small (4 cyl), high efficiency diesel truck will soon be on the market? The new Chevy/GMC, Toyota, and Nissan trucks are all bigger than their predecessors (by hundreds of pounds), and I don't think a diesel is optional on any of them. (Isuzu had them available in the past, but I cannot find it on any current option listing.) It seems like there is a big market being missed, and if Volkswagen can get one EPA approved in a car, it certainly should be doable for a truck. Thanks for any news you can offer.