Aston Martin Valhalla Spider: a hybrid convertible supercar that defies the laws of aerodynamics

Aston Martin has just unveiled the Valhalla Spider, an open-top version of its plug-in hybrid supercar. Equipped with a twin-turbo V8 paired with three electric motors, this new model generates 1,079 horsepower and can reach 350 km/h—even without a roof. It’s a technical feat that is truly impressive.

By becoming its first plug-in hybrid supercar produced in series, the Valhalla already marked a turning point in Aston Martin’s history. The British manufacturer is now taking this concept further with the Spider version. Removing the roof from a car capable of reaching 350 km/h isn’t as simple as it seems.

A 1,079-horsepower Aston Martin plug-in hybrid

Beneath its bodywork, the Valhalla Spider uses the same engine as the coupe. It features a 4.0-liter twin-turbo V8 producing 828 horsepower, paired with three electric motors that add another 251 horsepower. Together, they deliver 1,079 horsepower and 1,100 Nm of torque. Two electric motors are mounted on the front axle, while the third accompanies the V8 at the rear. This layout allows for precise distribution of torque to the front wheels, enhancing traction and cornering performance.

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The performance remains impressive: 2.5 seconds to go from 0 to 100 km/h, with a top speed electronically limited to 350 km/h. These figures are identical to those of the coupe, despite the change in bodywork.

Up to 350 km/h even without a roof!

The main feature of this Spider is undoubtedly its removable roof. Aston Martin offers a standard soft, detachable convertible top that limits the top speed to 200 km/h. A rigid carbon fiber roof, available as an option, restores the 350 km/h speed. Interestingly, this speed is still achievable when the roof is completely removed. To achieve this, engineers developed a specialized deflector and raised the air intake behind the occupants by 35 mm.

The active aerodynamics were also recalibrated to account for different configurations, especially when the occupants choose to drive with the roof open. With its roof in place, the car can generate over 600 kg of downforce at high speeds.

Electricity serving performance

Despite its rechargeable hybrid powertrain, the Valhalla Spider is clearly not intended to compete with electric cars in terms of efficiency. Its small 6.1 kWh battery primarily serves to power the electric motors and enhance performance. This is the unique aspect of this technology in supercars: electrification helps improve acceleration and dynamic handling more than it does to significantly reduce fuel consumption.

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The Valhalla Spider will be unveiled to the public at Concours d’Elegance at Wynn in Las Vegas, with first deliveries expected by the end of 2027. Aston Martin has not yet announced its price, but this version is likely to cost more than the coupe.