The White-Label Rebellion: RML’s 920-Horsepower Le Mans Ambush

For four decades, RML Group operated as motorsport’s ultimate ghostwriter. If an OEM required a championship-winning touring car, an experimental powertrain, or a hypercar chassis executed without brand fingerprints, the Wellingborough outfit quietly delivered. Now, to celebrate its 40th anniversary, the British engineering powerhouse is stepping out from behind the corporate curtain with the RML P39 40SE—a carbon-clad, 920-horsepower manifesto that takes the bones of a Porsche 992 Turbo S and rebuilds it in the ruthless image of late-nineties Le Mans GT1 prototypes.

The premise behind the P39 is deliberately ambitious. Modern track specials like Porsche’s own GT3 RS deliver staggering downforce at the direct expense of daily spine integrity, while the standard Turbo S excels on cross-continental sprints yet leaves ultimate circuit pace on the table. RML CEO Paul Dickinson and his technical team sought to obliterate that compromise by pairing bespoke active aerodynamics with a thoroughly overhauled 3.8-litre twin-turbo flat-six, creating an endurance racer with manners.The premise behind the P39 is deliberately ambitious. Modern track specials like Porsche’s own GT3 RS deliver staggering downforce at the direct expense of daily spine integrity, while the standard Turbo S excels on cross-continental sprints yet leaves ultimate circuit pace on the table. RML CEO Paul Dickinson and his technical team sought to obliterate that compromise by pairing bespoke active aerodynamics with a thoroughly overhauled 3.8-litre twin-turbo flat-six, creating an endurance racer with manners.

Making its North American bow on Jay Leno’s Garage, the P39 generates more downforce and theoretical circuit velocity than a factory 992 GT3 RS while preserving the pliant road compliance and grand-touring usability of the donor Turbo S. The transformation involves custom wide-body carbon composite bodywork, a radical aero package complete with an elongated rear deck and roof scoop, and sophisticated chassis tuning engineered entirely in-house.Making its North American bow on Jay Leno’s Garage, the P39 generates more downforce and theoretical circuit velocity than a factory 992 GT3 RS while preserving the pliant road compliance and grand-touring usability of the donor Turbo S. The transformation involves custom wide-body carbon composite bodywork, a radical aero package complete with an elongated rear deck and roof scoop, and sophisticated chassis tuning engineered entirely in-house.

Distribution across the Atlantic is being handled exclusively by Graham Rahal Performance, bringing authentic British endurance breeding directly to American collectors who find Stuttgart’s standard catalogue slightly too pedestrian. In an era where hypercar launches often lean on hollow software gimmicks, RML’s old-school engineering gravitas delivers something far more compelling: four decades of race-winning discipline distilled into a single, road-legal Le Mans silhouette.Distribution across the Atlantic is being handled exclusively by Graham Rahal Performance, bringing authentic British endurance breeding directly to American collectors who find Stuttgart’s standard catalogue slightly too pedestrian. In an era where hypercar launches often lean on hollow software gimmicks, RML’s old-school engineering gravitas delivers something far more compelling: four decades of race-winning discipline distilled into a single, road-legal Le Mans silhouette.