Multi Chopper Why Did Mafia Wars Change Some Of The Names On Items?

Why did Mafia Wars change some of the names on items? - multi chopper

OK, so I play Mafia Wars on myspace na few days ago, I have realized that the Humvee has become "multi-purpose truck, the Porsche 911 is now a" GX9 Harley Davidson and is currently the "switch" Well, three, but theres many other examples, and so anyone know why he did it only in the Curio