It included a tweaked version of Aston Martin's familiar grille and headlight design and a more pronounced bulge in the bonnet – with One-77-inspired flourishes saved for the sides and the rear, the side vents run almost to the door handles (shared with the One-77), new rear light design shared with the One-77, and a 5.9-litre V12 engine that has a power output of 550 horsepower .