When an automaker announces a more powerful version of one of its vehicles, it usually makes us quite happy. Generally (but certainly not always), more power means more fun. So it was with some joy that we greeted the news of Buick’s new turbocharged Verano. With a 2.0-liter, turbocharged four-pot under its handsome, portholed hood, it packs 250 horsepower and 260 pound-feet of torque.