At the Geneva Motor Show, further details emerged of Aston Martin’s Project One-77, with chassis No. 1 on display.
It is powered by a new Aston Martin 7.3-L, naturally aspirated, dry-sump V12 engine (an evolution of the 6.0-L V12), expected to produce more than 520 kW (697 hp). Cosworth partnered Aston in the engine’s development. The engine is mounted some 100 mm (3.9 in) lower than that of any previous Aston Martin V12 unit. It is positioned 257 mm (10.1 in) aft relative to the front-wheel center line to create a midfront configuration. A target for the engine’s design was to reduce mass by 10%.
"Incredibly, the Aston Martin and Cosworth engineers achieved a mass reduction of some 25%," said Program Manager Chris Porritt. The two-door, two-seat sports coupe will be based on a new carbon-fiber monocoque body structure and adopt active aerodynamic technology.
As the initial working title name suggests, production will be limited to a maximum of 77 individually numbered examples, with deliveries expected to commence late this year.
"We wanted to create something that wows as much when you see what’s under the skin as the exterior styling," said Porritt. " We identified the most technologically exciting front-engined, rear-wheel-drive cars in the world: those from the DTM race series. We then applied the principles and technology that feature heavily in their design and translated these to a road application." The car has a carbon-fiber tub built in partnership with Multimatic (at its MTC in Toronto) and hand-rolled aluminum panels.
The chassis includes inboard suspension (to reduce unsprung weight and aid packaging) and double wishbones front and rear. Pushrods are used to transfer vertical suspension movements to the horizontally mounted spring/damper units. Dampers have DSSV (Dynamic Suspension Spool Valve) technology, claimed by Aston as a "world first" for a road car.
Pirelli P Zero Corsa tires have been developed specifically for the car, which has carbon ceramic matrix brake discs.
Projected weight for the car is 1500 kg (3310 lb) and performance aims include a 0-100 km/h (0-62 mph) time of 3.5 s.