It's been 18 months since the Koenigsegg Jesko debuted at the 2019 Geneva Motor Show, but the Swedish automaker's latest hypercar still hasn't started production. Since then, Koenigsegg has unveiled the even more extreme Jesko Absolut that could break the 300-mph barrier, making it Koenigsegg's answer to the record-setting Bugatti Chiron Super Sport 300+. Now, for the first time we finally get to see the Koenigsegg Jesko get put through its paces on video.

On Instagram, Koenigsegg shared a new video of the Jesko undergoing final prototype testing at an airfield before customer deliveries begin later this year, allowing us to hear its savage V8 soundtrack in all its glory. This is easily one of the best-sounding V8s we've ever heard.

Since Koenigsegg's headquarters is situated at an abandoned airfield that used to be the home of the Swedish Air Force's Fighter Jet Squadron, the Jesko had plenty of room to stretch its legs during high-speed testing on the 1.05-mile-long runway. It's not very often we get to see the Jesko on the move getting pushed to its limits, but it's a glorious sight to behold. The test driver doesn't hold back either, pushing the prototype to its limit.

The savage sound you're hearing is the Jesko's turbocharged 5.0-liter V8 engine can produce up to 1,603 hp and 1,000 lb-ft on E85 fuel and rev all the way to 8,500 rpm.

This is the most powerful internal combustion engine ever fitted to a homologated production car. All that power is sent to the rear wheels through a nine-speed multi-clutch transmission developed in-house. In contrast to traditional dual-clutch transmissions, Koenisegg's seven-clutch unit allows the driver to shift from any gear to any other gear.

Only 125 examples are being produced, with production split between the regular Jesko and the Jesko Absolut. Despite costing nearly $3 million, all 125 examples of the Jesko have already been sold, unless you're willing to pay a premium for a build slot.