just found this......and was pretty interesting and thought u guys might wanna have a peek at what the competition are up 2:
News from the Mercedes-AMG GmbH: Luxurious dynamics par excellence S 63 AMG and CL 63 AMG with new high-tech twelve-cylinder engine
- Sovereign V12-drive guarantees outstanding driving pleasure
- 6,3 litre displacement, 326 kW/444 hp output and 620 Nm torque
- ABC-chassis combines security, comfort and driving dynamics
- Individual choice of trim
With S 63 AMG and CL 63 AMG Mercedes-AMG GmbH presents two luxurious twelve-cylinder top models, which in driving dynamics and power development set standards unknown until now. The newly developed V12-engine cares for a high-class drivetrain experiences, whose power-output and torque figures already impress on paper: The AMG high-tech twelve-cylinders derive a power output of 326 kW/444 PS as well as a maximum torque of 620 newton metres from 6258 cubic centimetres displacement.
The fascinating engine figures allow a top-line road performance: From zero to 100 km/h ((62 mph)) the Mercedes-Benz CL 63 AMG accelerates in only 5.5 seconds, the S 63 AMG passes this exercise in only 5.7 seconds. The top speed of both models is 250 km/h (electronically limited), on special customer's order both high-performance automobiles are available without top speed limitation.
Besides the impressive top figure of 620 newton metres at 4.000 revs/min above all convinces the torque development of the new AMG-V12 engine: Between 2.500 and 5.800 revs/min permanently more than 530 newton metres, that is 85 per cent of the torque peak, are available. The lush power offered enables acceleration processes on the level of pure-bred super sports cars as well as sovereign and relaxed gliding along in top gear. And even more: The solid engine characteristics fulfills the high customer demand in this car category for exquisite driving culture in best possible perfection. Mercedes-Benz S 63 AMG and CL 63 AMG celebrate their market premiere in autumn 2001.
The AMG twelve-cylinder engine is a new development on the base of the acceptably powerful and cultivated V-12 unit with 5.8-litres displacement which drives the Mercedes-Benz models S 600 and CL 600.
Under consideration of their motorsport experiences won over some decades the engineers of Mercedes-AMG GmbH have newly constructed the following components:
- Crank case with optimized cooling system
- camshaft milled from the whole, weight-optimized and made out of special, durable material
- weight-optimized pistons
- camshaft with greater valve lift
- suction pipe with enlarged channels
The changed crank gear as well as the new bore-stroke relation led to an enlargement of the displacement from 5.786 cubic centimetres to 6.258 cubic centimetres. The modifications at the valve gear as well as the new suction pipe enable an optimal volumetric efficiency over the whole revolution range.
Extensive modifications in the engine interior
Mercedes-typical durability are guaranteed by high-class materials of the engine mechanics as well as by the optimized oil- and coolant circulation of the AMG V-12 engine. The expensive adaptation of the engine management is not only responsible for the hefty power- and torque development, but also for the highest efficiency of the V-12 engine equipped with double-ignition, three-valve technique and ion-stream diagnosis. So the strong AMG engines of course fulfills the currently valid exhaust emissions standards EU 3 and D4. Also the limits of the strong EU-4 exhaust emissions standards, which will be effective only from the year 2005 on, are beaten already today.
The most important figures in the overview:
--------------------------S 63 AMG*------CL 63 AMG*
Bore x Stroke mm---------84,5 x 93,0-------84,5 x 93,0
Compression ratio---------10,0 : 1---------10,0 : 1
Power output kW/PS------326/444---------326/444
Max. torque Nm-----------620 -------------620
0–100 km/h ((062 mph))s--5,5--------------5,7
Top speed km/h-----------250**-----------250** ((155 mph))
The specialists of Mercedes-AMG also have perfected the the two-flute exhaust system of the twelve-cylinder. In the sense of an as much as possible resistance-reduced exhaust layout the pipe diameter behind the two underfloor catalysts has been chosen larger. A consistent ending deliver the two oval, chromed tailpipes in the typical AMG look; escaping from them is a newly composed, inspiring twelve-cylinder sound. But the long-distance driving comfort not at all is negatively effected by the characterful sound picture.
Engine assembly by hand under strongest quality criteria
Traditionally every engine at Mercedes-AMG is built by hand - so is this high-performance twelve-cylinder. An AMG technician assembles a complete engine under tightest tolerances, of course the strongest Mercedes-Benz quality criteria are being are considered. After the completion has occurred every V-12 engine has to show its performance at an extensive test bench run.
The power transmission with the S 63 AMG and CL 63 AMG is done by a five-speed automatic transmission with tipshift, whose tuning has been adapted to the dynamic character of the top models. The power- and torque-growth demanded newly defined shift points. Strengthened drive shafts at the multilink rear axle round off the drivetrain measures.
Active chassis regulation Active Body Control as milestone
The Mercedes-AMG engineers intentionally have not changed the brake system and chassis of S 63 AMG and CL 63 AMG.
Perfect braking in all driving situations guarantees the large brake of the models S 600 and CL 600 with four vented and in the front drilled. The actively regulated Active Body Control (ABC) sets standards in view of driving security, driving dynamics and driving comfort.
This system instantaneously compensates body movement via high-pressure hydraulics and powerful control devices and e.g. reduces body pitch in fast driven corners to a minimum. With the push of a button with the "Sport"-setting the body sway can again be reduced noticeably.
AMG light-alloy wheels and AMG styling on customer order
As standard the new AMG high-performance sedans of the S- and CL-Class roll on light-alloy wheels of the dimension 7,5 J x 17, which are equipped with tyres in the format of 225/55 R 17. Clear sporty accents are set by the optional wheel-tyre combinations with 18 and 19 inches. Especially the multi-part AMG light-alloy wheels in the format 8,5 J x 19 (front) and 9,5 J x 19 (rear) with mixed tyres in 245/40 R 19 and 275/35 R 19 optically and in terms of driving dynamics are a delicacy of the special kind. Besides that the beautifully designed AMG light-alloy wheels care for a more efficient ventilation of the brake discs.
The very expressive AMG styling underlines the dynamic-exclusive character
of S 63 AMG and CL 63 AMG as an option. It contains a prominently shaped front skirt, special door sill covers as well as an impressive rear skirt. The rich standard trim of both models amongst other things contains the AMG instrument cluster with 320km/h scale, COMAND, precious wood trim, nappa leather upholstery, climate control, parameter steering, pop-up sunroof in glass as well as Xenon headlights (S 63 AMG) and Bixenon headlights (CL 63 AMG).
High-performance sedan Mercedes-Benz 300 SEL 6.3 AMG 30 years ago
With S 63 AMG and CL 63 AMG die Mercedes-AMG GmbH continues to the 1971 presented high-performance sedan Mercedes-Benz 300 SEL 6.3 AMG. It's tuned eight-cylinder engine mobilized proud 235 kW/320 PS and even at that time cared for impressive road performance at the level of pure-breed sports cars.
but what i dont get....that amazing engine only get to 100 (60mph) in 5.5 secs in the S and 5.7 in the CL...must be such a tank.