The One-77 features a full carbon fibre monocoque chassis, a handcrafted aluminium body, and a naturally aspirated 7.3 litre (7312 cc) V12 engine with 750 hp (560 kW). Aston Martin claimed it would be the most powerful naturally aspirated production engine in the world when the first car was delivered.
The car uses a strengthened version of the DB9's 6-speed automated manual transmission and height-adjustable pushrod suspension coupled with dynamic stability control. It will feature Pirelli P Zero Corsa tyres (255/35 ZR20 front, 335/30 ZR20 rear) and Carbon Ceramic Matrix brakes.
The top speed was estimated to be 220 mph (350 km/h) but actual tests in December 2009 showed a figure of 220.007 mph (354.067 km/h), with a 0–60 mph time of approximately 3.5 seconds.