Currently reading: New Aston Martin Valhalla Spider: £1.3m roadster tops 217mph

Mega-power V8 hybrid lifts its lid – and its price – for ultra-exclusive Testarossa Spider rival

The new Valhalla Spider is the fastest Aston Martin convertible yet, capable of 217mph at full chat — with or without its roof in place.

This means that when its lid is removed, Gaydon's V8 drop-top can outpace the V12 Valkyrie Spider, which is restricted to 205mph without its roof.

The new version of the Valhalla is expected to make up a quarter of the 999-unit build run, and will command a sizeable premium of about 40% over the coupé, taking the entry price to around £1.3 million — three times as much as the Ferrari 849 Testarossa Spider. Most have been sold already, approximately a year before production begins.

Its high list price means that despite its relative exclusivity, the Spider will play a significant role in boosting Aston's average selling price as the company strives for better profits. The firm has previously said it will prioritise range-topping derivatives of existing models over the coming years as part of a push to increase margins.

The substantial uplift in price also reflects the level of engineering that has gone into creating a convertible version of the carbon-tubbed two-seater. To preserve the rigidity of the base car, as well as its sleek silhouette, the Valhalla Spider features a targa-style removable panel — fabric as standard and optionally upgradable to a carbonfibre panel — rather than a weighty, complex folding mechanism.

The Spider also has a wind deflector that has been designed to channel air up and over the cockpit — reducing buffeting at speed — and down to the air scoop at the rear, which has been raised by 35mm to optimise cooling with the interrupted airflow. When not in use, the wind deflector, like the fabric roof, can be folded and stowed in one of the new 15-litre cubbies that have been engineered into the lower sills.

The Spider alters its active aero and ESP settings to adapt to changes in airflow when the roof is removed, ensuring "consistent vehicle balance, stability and driver confidence", said Aston.

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Armed with the same hybrid drivetrain as the coupé — combining a twin-turbo 4.0-litre V8 and three electric motors — the Valhalla Spider packs a colossal 1064bhp and 811lb ft of torque.

Despite carrying an extra 25kg — with a dry weight of 1680kg — the roadster matches both its fixed-roof sibling's 2.5sec 0-62mph time and top speed.

It retains the coupé's highly advanced vehicle dynamics control system — which constantly monitors and adjusts the suspension, brakes, steering, aero and powertrain to suit the conditions — and movable bodywork elements that optimise aero at different speeds. Aston says this means the car achieves the same maximum downforce of 600kg with the roof in place.

The Spider also keeps the coupé's dramatic dihedral doors, which are now frameless rather than hinged from the roof and have been subtly reprofiled for easier entry and exit when the roof is on.

Valhalla Spider vs rivals: Mega-power V8 drop-tops

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Felix Page

Felix Page
Title: Deputy editor

Felix is Autocar's deputy editor, responsible for leading the brand's agenda-shaping coverage across all facets of the global automotive industry - both in print and online.

He has interviewed the most powerful and widely respected people in motoring, covered the reveals and launches of today's most important cars, and broken some of the biggest automotive stories of the last few years.