I just wish it was louder. Because on ignition the car is disappointingly quiet. The 6.0-liter biturbo V12 is idling, but it's almost a strain to hear it. Apparently Carlsson has battled to create a baritone, booming exhaust note in this, its most powerful engine ever. But the Mercedes engine is what it is and they simply cannot make it gargle fuel and rage at the gods above until its heading toward the redline.

Don't think for a second that it's slow though, as Carlsson has unleashed 753 hp with the help of a new ECU program, intake, and exhaust system, and has had to limit the 995 lb-ft of torque on tap to just 850 for the transmission's sake. That means it will roar through the 60-mph mark in 3.7 seconds and head all the way to an epic 219 mph. There are few cars in the world that will match it for pace and just a few that could claim to offer the same effortless performance.

The C25 is still Mercedes-simple to drive; with the auto 'box set in full slush mode it simply skips through the gears without a second thought and with ample braking and with all of Mercedes electronics arsenal its almost impossible to upset, let alone crash. That's the key to the C25: It simply piles on speed at a relentless, merciless rate when it's required and tickles along with a barely audible whisper under normal driving conditions. This is where 99 percent of us spend 99 percent of our time: in traffic, in the city, on the motorway.

And it's a wondrous place to spend a day, too, thanks to lavish splashes of carbon among real buffalo hide and ultra-suede finish. The car is completely tailored to the individual, and though the marriage of red and orange sits a little uncomfortably in the show car for my liking, the first buyer wanted the car delivered as it is. He likes it. He knows his car will be unique, the only one of its kind in the territory, and that was enough to sway him away from the Black Series, the Bentley Continental Supersports, even the Rolls-Royce Phantom he could have had for less money.

Carlsson needs just 24 more like-minded individuals, and has already found a few of them. If the rest are found, the C25 will be a rip-roaring success and the start of a new trend. Logically speaking, the C25 doesn't really stack up, but for the target market it will be worth each and every cent.

But please, if one buyer happens to be you, leave the gold alone.

Carlsson C25

Layout
Longitudinal front engine, rear-wheel drive

Engine
6.0-liter V12, sohc, 36-valve, twin-turbocharged

Transmission
Five-speed automatic

Suspension
Multilink, coil springs, adjustable monotube dampers with Carlsson C-Tronic

Brakes
Six-piston calipers with 405mm rotors (f), four-piston calipers with 380mm rotors

Wheels and Tires
Carlsson alloys, 19-inch
Dunlop SP Sport Maxx GT

Performance
Peak Power: 753 hp @ 5000 rpm
Peak Torque: 850 lb-ft @ 3750 rpm
0-60 mph: 3.7 sec.
Top Speed: 219 mph

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