SEMA: Mercedes-Benz GLK Speedster

*Updated With New High-Resolution Image GalleryOne of the most extreme concepts at this year's Las Vegas SEMA Show is the Urban Whip from Boulevard Customs. The Florida-based coach builder took the new Mercedes-GLK and transformed into a four-door, crossover speedster -that sounds even weirder than it looks... The crew over at Boulevard Customs removed the GLK's rooftop, chopped the windscreen