General Motors is still not convinced that putting a diesel engine under the hood of their upcoming 2015 Chevrolet Colorado and GMC Canyon pickups is the right thing to do, in spite of the fact that Ram's bigger 1500 can already be ordered with one , while the Nissan Titan will be receiving its own too, a US-built five-liter V8. Their restraint is not really understandable, since they already sell the Colorado in diesel configuration outside the US, so the investments associated can’t be astronomical. Read more »
