Miller Motorcars JC9 revealed as V10 manual Carrera GT coachbuild
31/05/2026
Now this is special. And honestly? This is the kind of project we love.
The Miller Motorcars JC9 has been globally unveiled during the dealership’s 50th Anniversary “Legends” celebration, and it is exactly the kind of car that reminds you why coachbuilding still matters. A carbon-fibre, V10, manual supercar based on the Porsche Carrera GT. Designed by Jason Castriota. Inspired by sports prototypes from the 1960s to the 1980s. And built as a one-off commission after a multi-year development process.
A Porsche Carrera GT, reimagined
The starting point already matters. The Porsche Carrera GT is one of the greatest analogue supercars ever made. Naturally aspirated V10. Manual gearbox. Carbon structure. No unnecessary filter between driver and machine. So the JC9 does not need to reinvent the emotional core. It needs to protect it.
That seems to be the entire point. The JC9 keeps the essential magic of the Carrera GT (the V10, the manual transmission, the mechanical purity) but wraps it in a completely new carbon-fibre body with a very different design philosophy. Less early-2000s German supercar. More endurance prototype dream.
Jason Castriota’s ninth automotive masterpiece
The name JC9 refers to Jason Castriota’s ninth major automotive project. And that is not just a nice detail. Castriota’s portfolio is already serious: Ferrari P4/5 by Pininfarina, Ferrari 599, Ferrari 612 Kappa, Maserati GranTurismo, Maserati Birdcage 75th, SSC Tuatara, Bertone Mantide and even the Ford Mustang Mach-E.
That gives the JC9 real design context. This is not some random restomod with a famous donor car and a carbon body. It comes from someone who understands how to reinterpret iconic shapes without turning them into parody.
Sports prototype inspiration, without trying too hard
Visually, the JC9 takes inspiration from the golden era of sports prototypes. That means clean surfaces, purposeful proportions and a shape that feels more aerodynamic than decorative. The references are there, but the car does not seem trapped in nostalgia. It is not trying to cosplay as a 1960s Le Mans car.
It feels more like a modern translation of that spirit. That is exactly what makes it interesting. The best coachbuilt cars do not copy the past. They understand the emotion behind it and then create something new.
Why the Carrera GT base is perfect
Using the Porsche Carrera GT as the base is almost painfully clever. Because the Carrera GT already has the ingredients modern supercars are losing: sound, tactility, danger, mechanical honesty and a manual gearbox. It is not just fast. It is alive.
That makes it one of the few modern icons worthy of a coachbuilt reinterpretation. The JC9 does not need hybrid assistance, artificial theatre or digital drama. Its appeal is much simpler than that. A naturally aspirated V10, a manual gearbox, a carbon-fibre body, a one-off design. That is more than enough.
AutoNext Take
The Carrera GT is sacred ground. Rebodying one is a dangerous game. Get it wrong, and the internet will destroy you. Get it right, and you create something that adds a new chapter to an existing legend. From what we see so far, the JC9 feels like the second case.
It keeps the emotional core intact: V10, manual, carbon, purity. Then it adds a layer of coachbuilt design inspired by the era when racing cars looked like sculpture with a purpose.
That is a rare combination. Jason Castriota helped create one of the greatest Ferrari-based one-offs of the modern era. Now, with the JC9, he may have done the same for one of Porsche’s most beloved analogue icons.
