A new car has just been spotted going very quickly around the Aston Martin test track. This extreme machine looks like almost nothing else on the road, but what is it? Is a new Batman installment filming and the caped crusader needs a new ride? According to a new report, this beast is a one-off that Aston Martin is designing for a US billionaire, designed to chew bubble gum and set track records. Word has it, it's all out of bubble gum. Shaky Video Shows Very Fast Ride The video that was posted to TikTok is shaky and has a heavy dose of zoom, but the glimpses we can get show a car that is extraordinary. It's a mix of F1 and Le Mans Prototype, with the former visible in the cockpit and front and rear wings, but the more enclosed bodywork over the front and rear tires gives it the prototype vibe.It looks to be bare carbon fiber. Nothing fancy, just a matte clear finish. This is probably a prototype of the prototype, so it doesn't get any cosmetic extras. That works well for camo, too.scubashef1969 / TikTokWhat is it then? According to German site Auto Motor und Sport, it's a creation for American billionaire Ken Griffin, the owner of hedge fund Citadel. It is a project that was meant to stay secret, and it is the work of Aston Martin Performance Technologies.The report says that AMPT first showed the car to a small group at the Silverstone F1 race last year. The company was looking for one buyer interested in funding both the project and the result, and Griffin is evidently the one to do it.AMPT is part of the road car company, not the Formula 1 team, but there's some significant overlap. Many of the employees at the former have worked at the latter. AMPT is already responsible for the limited-edition Valkyrie, which was designed with help from legendary race car designer Adrian Newey. Part Of A Growing Field Of OE Track Specials Aston Martin The Valkyrie was meant as a sort of side project for Newey, but also to build a halo for the brand. It even had help from Red Bull Racing, because RBR was originally part of the project. It's not clear whether this will use the sameCosworth 6.5-liter V12as the Valkyrie, Aston's Honda F1 engine, or something else entirely.According to the report, this car is going to be something beyond anything Aston has done before. It's not meant to even try to be a road car, so everything about it is for going quickly. The report suggests that without race series rules, it could be 10 seconds quicker to lap a typical circuit than a modern F1 car.If that's the case, it will be facing some serious competition. A growing number of automakers have been developing track-day specials to show off their skills without worrying about rules or laws. Examples include theBugatti Bolide, Pagani Huayra R, Czinger 21C track car, and Aston's own Valkyrie AMR Pro.The car is about bragging rights, especially if it manages to smash many track records. The question then might be who gets to drive it? An Aston Martin Formula 1 driver would be the ideal first choice, but do you really want Lance Stroll behind the wheel?