The car is expected to cost between 600,000 pounds and 700,000 pounds ($800,000 to $970,000) in its UK home market. It will compete with the 986-hp Ferrari Stradale SF90, the Italian company’s first plug-in hybrid.
Valhalla deliveries are expected to begin in 2023.
The Valhalla was first revealed as the AM-RB 003 concept at the 2019 Geneva auto show and had been slated to use a V6 hybrid of Aston Martin’s own design.
Along with the engine switch, the car’s design has also changed.
The link to the more extreme Valkyrie model is still seen in Valhalla’s bubble shaped canopy sitting low in the body and also in the bodywork openings, but the grille has now been filled in with Aston’s signature horizontal strakes.
"The execution has evolved considerably in order to reach production of this all-new car," Aston Martin head of design Marek Reichman said in the statement. "Valhalla is now a more mature, fully resolved piece of design.”
The interior is larger than the Valkyrie’s, but the driver still reclines in the manner of a Formula One driver.
Adjustable pedals and an adjustable steering column allow the seat bases to be fixed to the chassis structure.
The Valhalla is designed around a carbon-fiber tub that keeps dry weight down to below 3,417 pounds (1,550 kg) and also aids handling due to the stiffness of the material.
The suspension at the front is a push-rod style using inboard springs and dampers that reduces the unsprung weight. A track mode stiffens the suspension and lowers the car to help with downforce. In city driving an axle lift system raises the nose to allow it to drive over obstacles such as speed bumps.
The aerodynamic system is designed to maximize the airflow under the car to avoid the need for a big wing.
The resulting bodywork with its dramatic intakes and vents retains a clean profile that Aston Martin says, "blends function and beauty in a manner that befits a new generation of mid-engined supercar."
The interior is said to be driver focused but Aston Martin has decided to add a touchscreen in place of a holder for the driver’s smartphone seen in the AM-RB 003 concept.
The weight saving measure was cited by former CEO Andy Palmer as one inspired by Red Bull's chief engineer, Adrian Newey, who worked with Aston Martin on the design of the Valkyrie and the original Valhalla concept. The co-operation with Red Bull was no longer mentioned in the release for the production model.