The Valhalla is powered by a hybrid system combining a 4.0-litre twin-turbo V8 engine with electric motors, producing a combined output of 998 hp and 937 Nm of torque . It features an 8-speed dual-clutch transmission . For buyers considering the Aston Martin Valhalla, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.