The 1160bhp mid-engined model was driven by Aston test driver Chris Goodwin and will also be driven by a team of engineers, including those from Red Bull Advanced Technologies, who were integral in the Valkyrie's development. First deliveries are now tipped for the second half of 2020 - later than initially thought.
The Czinger 21C rival has already been put through its paces countless times on track, and earlier this year, a video was released of Red Bull Racing F1 drivers Alex Albon and Max Verstappen giving it the once over behind the wheel (below).
Despite its track focus, road testing is vital to ensure the car is suitable for Valkyrie owners intending to use their cars in everyday situations. The teams must ensure necessary levels of comfort and refinement are met, along with traits such as drivetrain smoothness in slow-speed traffic.
The 1160bhp hypercar was first heard under full throttle in a video posted by boss Andy Palmer prior to the above one.
The hybrid machine is powered by a Cosworth-developed 6.5-litre V12 that produces 1000bhp and 546lb ft and can rev to 10,500rpm, along with an electric motor developed by Rimac and Integral Powertrain that produces 160bhp and 207lb ft.
Peak combined outputs of the system are confirmed to be 1160bhp at 10,500rpm and 664lb ft at 6000rpm.
The short clip, below, shows the Valkyrie passing the Silverstone start/finish line under power. It sounds as if it ventures near the engine's bike-like redline: