https://arstechnica.com - Recently, General Motors' commercials have been throwing shade on rival Ford for its use of anything other than steel in truck beds. And the stock model continues to use steel, albeit a new alloy that GMC says is 50 percent stronger than before. But there will be a better option available, called CarbonPro. As the name suggests, this uses carbon fiber in place of steel for the inner panels and bed. The weight saving for the truck bed alone is 62lbs over the conventional unit. The weight saving continues throughout the vehicle, with aluminum used for body panels like the hood, fenders, and tailgate; in all, it weighs up to 360lbs (163kg) less than the outgoing truck.