Social media allows for news to travel fast. Case in point, Fiat just sent out word via its official Twitter account minutes ago confirming that its U.S. spec 500 Abarth performance model will debut at the 2011 Los Angeles Auto Show in November.We recently had the chance to drive the European version , but this news allows us to commence being impatient for the day we can drive the 'murican trim – especially since we hear it will feature a more powerful 1.4-liter turbo with Multiair technology than the model currently filling up Mini Cooper mirrors in the EU. We hear it should produce around 175 horsepower – a handsome number for such a small, lightweight hatchback.