The new model was built by the company’s bespoke division – the James Bond-inspired “Q by Aston Martin” team.
Features include a 3D-printed rear frame, which saves 3kg, and light-weight magnesium tyres which cut its mass by 14kg.
Further carbon fibre, titanium and magnesium components trim off additional weight.
The launch of the Valiant follows the release of the Aston Martin Valour, a special edition model created for the company’s 110th anniversary last year. All 110 of the vehicles, estimated to be worth over $1.5m, sold out within two weeks.
Aston Martin said the new car’s design and engineering were intended to be a nod to an “era of brutal V12 performance”.
Work on the Valiant began as a personal commission for Fernando Alonso, who drives for the Aston Martin Aramco F1 team.
Mr Alonso asked for a “more extreme” version of the Valour.
“Valiant is born from my passion for driving at the limit,” Mr Alonso said.