Aston Martin Valkyrie's V12 delivers 1,000 horsepower, hits 11,100 rpm

Performance figures will be further boosted by a hybrid system.

Aston Martin has highlighted the Valkyrie's new 6.5-liter V12, billed as the 'ultimate expression' of the internal combustion engine.

The F1-inspired powerplant was developed via a partnership with venerable engine builder Cosworth, raising the bar for naturally aspirated engines with a peak output of 1,000 horsepower at 10,500 rpm. It will keep screaming up to 11,100 rpm, with peak torque of 546 pound-feet at 7,000 rpm.

Output will be further increased by a battery hybrid system, presumably bringing a significant increase in torque, though specific details of the electrified components are being kept secret until later in the development program.

The engine is designed to serve as a fully stressed element of the chassis, despite a dry weight of just 454 pounds. Cosworth's 3.0-liter V10 F1 racing engines are said to weigh 213 pounds, which scales up to 463 pounds at 6.5 liters.

The V12 is a focal point of the $3.3 million car, due to arrive sometime next year.

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