Whether it may be the all new GMC Terrain or any other GMC truck or SUV, Director of GMC advertising Craig Bierley has the scoop. And, there is definitely a lot to share since GMC sales are up 20% year-to-date.

The automaker has decided to go high-tech with GMC mobile apps. The GMC showroom app allows GMC to more easily target prospective owners. The app gives users the ability to search new and used vehicles…