Remember, the Vanquish S twins are lovable dinosaurs in the powertrain department. Both feature a naturally-aspirated, 5.9-liter V12 – that means no turbochargers. It might make a healthy 580 horsepower at 7,000 RPM and an equally healthy 465 lb-ft of torque at 5,500 RPM, but it's an endangered species. It is, however, a sonorous beast with incredible throttle response (no lag!) – and it's backed up with the smooth, well-regarded ZF 8-speed transmission, just like the coupe.
The similarities are fun, but the vive la différence. Especially in profile, with the top down, the Vanquish S Volante is beautiful. The small cowl humps are a racey, tasteful touch. There's almost assuredly some sort of weight penalty associated with choosing the Volante version, and there's definitely a cost penalty. The Vanquish S Volante will start at $315,775, or an $18,000 premium over the fixed-top version. From there, you can spend a lot more with various personalization options.
Update: An Aston Martin representative told us there isn't an official Vanquish S Volante weight figure to release at this time. For reference, the old non-S Vanquish Volante was 232 lbs heavier than the coupe. The Vanquish S coupe weighs 3,834 lbs, so it's a save assumption that the Volante version will be slightly north of 4,000 lbs. We'll update you when an official weight figure is released.
Both versions will hit US dealers in April.