The POSAIDON 940 hp and 1,280 Nm based on Mercedes-AMG S 63 4MATIC+

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For more than ten years, the downward-pointing trident has stood for unparalleled performance within the Mercedes-Benz and AMG community. This is because the specialists at POSAIDON – whose trademark is this polearm widely used in mythology – pick up where others left off a long time ago when it comes to performance enhancement.

But this raw power is rarely put on full public display by the POSAIDON engineers, who generally prefer to conceal it in a somewhat inconspicuous exterior that belies the lofty heights of performance it can actually achieve. A prime example of this is the POSAIDON S 63 RS 830+ shown here, which is based on the AMG variant of the large S-Class Coupe (C217).

POSAIDON pushed its 4.0-liter V8 twin-turbo engine (M177DE40AL) from the factory-set 612 hp and 900 Nm to a ferocious 880 hp and 1,200 Nm. This transformation, which POSAIDON is valuing at €29,990 (US $36,322), was achieved using high performance turbochargers with ball bearings, a sport air filter, and down pipes with sport catalytic converters. Naturally, the software of the engine control unit, transmission control unit and drive train control unit (CPC) was also tweaked. So now, the two-ton POSAIDON S 63 RS 830+ goes from 0 to 100 km/h in just 2.9 seconds. The top speed of this high-caliber bullet has been limited to 350 km/h to account for the tires.

But there’s more: Under the same name, POSAIDON is also offering the S 63 RS 830+ with 940 hp and 1,280 Nm, which – for the price of €52,000 (US $62,981)- goes beyond the other upgrades to include cylinder head porting, valve seat alterations and a water/methanol injection system (optionally with an individual tank). With this kind of power, it can go from 0 to 100 km/h in a mere 2.8 seconds, but the max speed is still capped at 350 km/h, again to account for the tires.

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