Another pick-up truck is joining this ever increasingly popular global segment.  Volkswagen is unveiling the Tarok Concept at the São Paulo International Motor Show.  The compact four door cab seats five.  Power will come from a 147 horsepower four-cylinder TSI engine matched with a 6-speed automatic and 4MOTION all-wheel drive.  The most interesting feature of this Tarok concept is a variable length bed. An access hatch to the cabin folds down for loading really long items. A production version of the Tarok will soon be launched on the Brazilian market, but it is unlikely to be imported to the U.S. This isn’t VW’s first pick-up. The mid-size Amarok commercial fleet oriented pickup has been on sale for years. The VW Atlas Tanoak concept truck shown last spring at the New York International Auto Show is a much larger vehicle than the Brazilian Tarok, more intune to American tastes. However there is no word from VW when or if an Atlas based truck will be made here.