YouTube user, Marchettino, was at the 2013 Concorso d'Eleganza Villa d'Este and brought us some pretty cool video. First, there was a CC100 Speedster revving its engine and now he brought us a video showing the Alfa Romeo TZ3 Stradale Zagato starting up and revving its engine.

The Zagato TZ3 Stradale was built to celebrate Alfa Romeo's centenary and is more American than Italian. That's because the model is based on a Dodge Viper ACR. The model is powered by an 8.4-liter V-10 engine developing a total of 611 horsepower. You can get a good listen to the amazing noise this engine makes in the above video, as the driver was kind enough to tickle the throttle a few times.

The TZ3 Zagato was limited to only nine units, all of them were offered with a carbon-fiber body and a "Kamm-tail" that pays tribute to the classic TZ and TZ2.

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