Leblanc Mirabeau: world's quickest production car

The Leblanc Caroline GTR is a street legal racing car and a true supercar. In keeping with the quality of the automobile they produce, Leblanc offers true service of the calibre expected by their elite clientele. The company’s web site explains that each customer demand can be fulfilled, up to and including the installation of a Formula 1 motor should it be desired. If it is, better bring two chequebooks because the price is as “No compromises” as the car. The base price for the current Leblanc Caroline GTR is approximately US$530,000 (EU€425,000 )

But the Caroline is not the subject of this article. The subject of this article is Leblanc’s newest automobile, the Mirabeau, named after a slow corner on the famous Monte Carlo Formula 1 circuit, which in turn is named after the adjacent hotel.

As the Leblanc web site states, “the car is designed and prepared to fulfill all the FIA/Le Mans standards to drive the car in LeMans,” being the famous 24 hour race held at the LeMans circuit each year.

The bit that makes the Mirabeau so special is that the engine of the Mirabeau is from the Koenigsegg CCR, until the series production of the Bugatti Veyron, the fastest production road car in the world.

On February 28 this year, at 12.08 local time, the Koenigsegg CCR set a production car speed record of 387.87 kmh at Italy’s Nardo Prototipo proving ground, beating the Mclaren F1 road car’s previous best recorded speed of 372mkh, the Ferrari Enzo’s 355kmh, the Porsche Carrera GT’s 334 kmh, the McLaren Mercedes SLR’s 334 kmh and the Lamborghini Murcielago’s 330 kmh.

The Koenigsegg CCR engine is a cast aluminium V8 with four valves per cylinder, double overhead camshafts and a displacement of 4.7 litres. The dual Rotrex centrifugal compressors run a 1.4 atmosphere maximum boost pressure and there’s also an intercooler.

The 215 kg power unit of the CCR produces 806 bhp at 6,900 rpm and maximum torque of 920 Nm (678 ftlb) at 5,700 rpm. The Mirabeau specifications show 700+ brake horses putting the state of tune of the Mirabeau somewhere between the top-of-the-line Koenigsegg CCR and the supercharged (single compressor) Koenigsegg CC8S, which produces 655 horses.

Leblanc has not been forthcoming with information on the motor – that is, it is not known at this time if the motor is a detuned CCR motor with twin turbos, or a single turbo CC8S motor in a higher state of tune.

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