GM pins diesel redemption on meaty 2016 Chevrolet Colorado

GM arguably stuck a knife in diesel's chances in the US back in the 70s, and now the company is hoping to make amends with its latest Colorado truck. The 2016 Chevrolet Colorado Duramax diesel packs a 2.8-liter turbocharged engine and the promise of better economy than its gas-powered brethren. However, it's likely to be the lashings of torque that …