A outmaneuver a taxi intent on keeping me in the giro and savor the feel of 191 horses leaping forward at my command. This is what driving should be about. And where else but Italy can one experience the undiluted, induced rush of pure offensive mobility. It takes a special kind of car to be able to "out chicken" a Fiat 128 on a vermicelli-narrow Tuscan road, and the new Mercedes-Benz SLK230 Kompressor fits the bill.