Without warning, the tour bus they'd just passed lurched violently to the left and smashed into the front fender of the Saab. The sports car tried to free its twisted nose from the bus' bumper, but the larger vehicle dragged it with single-minded determination across Fifty-seventh. The two collided with a parked Westwind 2000 and together pushed that car onto the curb. The few pedestrians jumped for cover as the tour bus continued on, dragging the Saab, then pinning it up against the Neiman Marcus and Whitton storefront to the accompaniment of a loud shower of glass and metal framework.