A Lamborghini Aventador LP720-4 50° Anniversario Roadster was photographed near the factory.

A Lamborghini Aventador LP720-4 50° Anniversario Roadster was photographed near the factory.

The coupe version made its debut last month at the 2013 Auto Shanghai and at that point there weren't any details about a roadster version. Lamborghini didn't wait too long and they came up with a limited edition of the Aventador Roadster created to celebrate the brand's 50th anniversary.

LamboCars says those who participated in the Grande Giro were invited by the Italian marque at a Galla Dinner where they had the chance to see the coupe, a white Gallardo LP560-4 50° Anniversario and this special Aventador Roadster built for the same occasion.

The supercar is wearing a matte gray paint scheme called Grigio Titans and has a Terra Emilia leather interior cabin. The exterior paint job looks similar to the one Reventon (and Roadster) has. Just like the coupe, the roadster version will be limited to 100 units.

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Lamborghini Aventador LP720-4 50° Anniversario Roadster spotted in the metal