General Motors North American President Mark Reuss hinted to Motor Trend that — beyond the 2015 Chevy Colorado and GMC Canyon pickups — that there’s something else from GM that’s set to debut. It’s being described as a “linchpin” for Chevrolet, but will also transcend brands. Sounds like a new approach to vehicle platforms to us. Will it be similar to Volkswagen AG’s modular MQB platform — a uniform architecture for its transverse, front-engine, front-wheel drive automobiles? Nobody is really sure. Regardless, look for something that’s more than just a vehicle to be announced at the 2013 Los Angeles Auto Show.