FOR MORE AUTO SHOW VIDEOS & NEWS VISIT: http://www.kbb.com/autoshow Among the four remaining General Motors brands perhaps the two facing the biggest challenges are GMC and Buick. In this interview Kelley Blue Book’s Jack Nerad speaks with General Manager Brian Sweeney to discuss the products and marketing strategies being utilized to help rejuvenate GMC and Buick. For more new car reviews, interviews and automotive news visit http://www.kbb.com today.