63 reasons to turn the volume up. 🔊 The Lamborghini Aventador SVJ 63 is powered by a naturally aspirated 6.5-litre V12 producing 770 CV at 8,500 rpm, giving it that high-revving soundtrack. With its lightweight, high-mounted exhaust system, the Aventador SVJ 63 is one you hear long before it disappears. Thoughts?