The 2012 Lamborghini Aventador LP700-4 continues to impress after three weeks since its unveiling at the Geneva Motor Show. We say that because this behind the scenes footage released by Inside Line that was taken during the shooting of the first promo for the new Aventador gives as the first clear sample of how that 700 PS engine sounds like.  
We’ve heard the Aventador LP700-4 revving its engine before, but if you pay close attention, this time the Murcielago replacement sounds like a rally car.
The 2012 Lamborghini Aventador LP700-4 promo scenes were taken in the California desert, and we are definitely looking forward in seeing the final footage. 
Behind the Scenes : 2012 Lamborghini Aventador LP700-4 Promo Shoot

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Source: InsideLine via YouTube