With more power and added equipment, the original hot hatchback just keeps getting better, says Road Test Editor Howard Walker. Imagine, for a sweet second, you could ride up front on Space Mountain, grab some imaginary wheel and steer through all those twists and turns. That’s kinda what it feels like to pilot VW’s latest Golf GTI Pocket Rocket through a snaky stretch of backroad. The squirrel-like way it changes direction, the laser-precision of its helm, the light-switch action of its gearsh...