It's widely accepted that V12 Lamborghinis should be big, brash and loud. It's an idea that Lamborghini engineers still subscribe to today, which is why the Lamborghini Aventador SVJ Roadster is about as big, brash and loud as it could possibly get.
And just how loud is the SVJ Roadster? Well there's a 770bhp naturally-aspirated V12 located about three inches behind your head, and no roof. The answer is 'very'.