"After an imaginary trip through the center of the world, a white car and its caravan have appeared at the center of the Galleria, cracking the floor and destroying its precious marbles." It's by some friends, the artists Elmgreen & Dragset, and was installed in the center of the Mall of Milano by the Nicola Trussardi Foundation.
Some merchants complained about the piece and damage to the "precious marbles." I think the bigger worry is that the piece'll get subsumed by the guys on Jason's Matrix thread. I mean, the Merovingian may swear in French, but he clearly buys his marble in Italy.