SEMA 2015, or this year’s Speciality Equipment Marketing Association show, wasn’t all about modified sports cars - there was also a fine selection of highly modified commercials. We pick SEMA's five wildest commercials as our favourites from the show in Las Vegas. Chevrolet Silverado 3500HD “Kid Rock” concept Chevrolet Silverado 3500HD What happens when Chevrolet and Detroit-based rapper-turned-country-rocker, Robert [...]