The front of the DBS features a new front bumper, with a larger centre grille compared to the DB11, for improved engine cooling, along with two air extractors on the sides to cool the brakes and two vents on the hood that aid in the engine cooling process. The 5.2-litre twin-turbocharged V12 engine, which is cast and manufactured at Grainger & Worrall in the United Kingdom before being shipped to the Aston Martin engine plant in Cologne for assembly, is rated at 725 PS (533 kW; 715 hp) at 6,500 rpm and 900 N⋅m (664 lb⋅ft) of torque from 1,800–5,000 rpm.[8] In order to optimise the centre of gravity and weight distribution, the engine has been positioned as low and as far back in the chassis as possible.
The DBS Superleggera features the new ZF 8HP95 transmission with a shorter final-drive ratio of 2.93:1, in contrast to the DB11's 2.70:1.[9] Chassis-wise, it also comes with torque vectoring and a mechanical limited slip differential for more focused track performance. The car also features many of the same aerodynamic features first seen on the DB11, including Aston Martin's Aeroblade system, but refines aerodynamics with an F1-inspired double-diffuser that helps the car generate 397 lb (180 kg) of downforce – the highest figure ever for a series production Aston Martin. A new quad-pipe titanium exhaust system improves engine sound, while the usage of carbon fibre in major areas of the car lowers the weight down to 1,693 kg (3,732 lb).
