The next chapter in Mustang performance may be closer than we think. Recently, what appears to be a 2026 Ford Mustang Shelby GT500 prototype was spotted and recorded in action, offering enthusiasts their first chance to hear its powerful V8 engine rev and accelerate.

The heavily camouflaged test vehicle, similar to one seen earlier this year, showed off distinctive wheels and new exhaust tips as it pulled away from a gas station. What followed was a symphony of classic Mustang sounds: deep, rumbling exhaust notes, a choppy idle, and even a hint of tire squeal – all pointing toward a high-performance machine in the making.

Under the hood, details remain unconfirmed. However, a leaked communication from the United Auto Workers (UAW) Local 600 suggests that the supercharged 5.2L V8 – already powering the Ford F-150 Raptor R and Mustang GTD – could also find its way into this upcoming model. The message even referred to a future “engine that will be named Legend,” adding further excitement to the speculation.

While it’s not yet certain if Ford will continue with the Shelby GT500 nameplate or introduce a new performance badge, one thing is clear: a new flagship Mustang is coming, and it promises to deliver the kind of raw power and thrilling performance that fans expect. Whether called GT500 or something entirely new, Ford’s next pony car icon is shaping up to be a legend in the making.