6 x Aston Martin Valkyrie singing at 11,000 rpm: Cosworth V12 Engine Sound on track!

An integral part of the programme for all three days of this year's Grand Prix de France Historique were the 'parade' sessions reserved for Aston Martin Valkyrie owners. A total of 6 cars took part in the event doing free laps of Circuit Paul Ricard. The Valkyrie is Aston Martin's extreme road legal hypercar developed in conjunction with Red Bull Racing, Cosworth, Multimatic, Ricardo, Rimac Automobili and many others who partnered in order to built a track-oriented car entirely usable and enjoyable as a road car. It was conceived by Adrian Newey, Dr Andy Palmer, Christian Horner and Simon Spoule.

Apart from the very interesting technical solutions on the aerodynamic side and those on the mechanical one, I want to spend a couple of words on that marvel that is the engine. It's a 6.5-litre naturally aspirated V12 engine designed, developed and produced by Cosworth specifically for the Aston Martin Valkyrie and called 'Cosworth RA'. The engine for the road-going Valkyrie (as the one in this video) is rated at 1,000 hp at 10,500 rpm, with a max torque figure of 740 Nm at 7,000 rpm. The red line is set at 11,100 rpm. Every aspect of the engine was designed for minimum weight, which sets new standards at just 206 kg.
The RA’s performance figures are boosted by a battery hybrid system developed by Integral Powertrain and Rimac. It contributes an additional 160 bhp of power making the Aston Martin Valkyrie to have a total of 1,160 hp. With a total weight of just over 1,000 kg, the early prototype exceeded the power-to-weight ratio of 1:1 but the final version for road use underwent a weight increase of more than 100 kg, due to homologation regulations and cost reduction.