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SLS AMG Roadster – Officially released

The SLS AMG Roadster has just been unveiled and although it has lost the gullwings, the convertible continues to feature the same purist design of the SLS AMG, after we spotted it undergoing cold winter testing in Sweden along with its usual test ground stomping aroun the Nordschleife.

The SLS AMG Roadster include an aluminium spaceframe body, an AMG 6.3-litre V8 front-mid engine with dry sump lubrication developing a peak output of 571hp and 650 newton metres of torque, a seven-speed dual clutch transmission in a transaxle arrangement and a sports suspension with aluminium double wishbones.

The hardtop has been substituted by a compact fabric soft top which Roadster opens and closes in just eleven seconds, and can be operated while drving at speeds up to 50 km/h.

The SLS AMG Roadster features some design reminiscences from the 300 SL Roadster, the classic dream-car from the 1950s, including the wide radiator grille with its large Mercedes star and the wing-shaped cross-fin, and also the fins on the bonnet and on the vehicle flanks.

While developing the SLS AMG Roadster, Mercedes focused to hand driving pleasure to its customers as well as outstanding performance. To do so the open top vehicle features an innovative body design with the chassis and body being made of aluminium. Thanks to it the SLS AMG Roadster is only 40 kilograms heavier than the Coupé.

Powering the SLS AMG Roadster is the same engine featured on the gullwing model: the 6.3-litre V8 with a peak output of 571hp at 6800 rpm. The engine makes the open-top SLS one of the most powerful sports cars in its segment and thanks to it the SLS AMG Roadster is able to accelerate from 0 to 100 km/h in 3.8 seconds and to reach a top speed of 317km/h (electronically limited).

Besides offering the performance the SLS AMG Roadster delivers very ambitious fuel consumption for a model of this category. It consumes 13.2 litres per 100 kilometres, which corresponds to CO2 emissions of 308 grams per kilometre.

The production of the SLS AMG Roadster will take place at Mercedez-Benz production plant in Sindelfingen. As for the AMG 6.3-litre V8 engine, it will come directly from the AMG engine workshop in Affalterbach, where it is hand-assembled according to the traditional “One man, one engine” philosophy.

The market lanch of the SLS AMG Roadster will take place in autumn 2011, with a selling price of € 195,160.


Official BMW 1 Series M Photographs

The much anticipated 1 Series M Coupe has been revealed by BMW.after many spyshots spotted throughout 2010 and remember you saw it first at pistonspy.


The twin-turbocharged, all-aluminum, 3.0-liter inline-6 engine is characterized by lagless engine response to the accelerator pedal, fantastic sounds, and a free-revving spirit. The combination of twin low-mass turbochargers and BMW’s High Precision direct injection offers an output a naturally-aspirated engine would only be able to provide through more cylinders and larger displacement.

The turbocharger system developed for the engine of the new 1 Series M Coupe maintains a high output throughout the entire engine speed range. Maximum output of 335 hp (250 kW) is delivered at 5,900 rpm. Nominal peak torque is 332 lb-ft (450 Nm) from 1,500 rpm to 4,500 rpm. Redline is 7,000 rpm. The enhanced engine management system of the 1 Series M Coupe includes an electronically-controlled overboost function to briefly increase torque under full load by another 37 lb-ft (50 Nm). This temporary torque peak of 369 lb-ft gives the car a substantial increase in acceleration. The 1 Series M Coupe will complete the sprint from a standstill to 60 mph in just 4.7 seconds (0-100 kmh in 4.9 seconds). The standing quarter-mile mark comes up in 13.2 seconds. Top speed is limited electronically to 155 mph (250 kmh).

The exhaust system of the 1 Series M Coupe has been tuned by M specifically for this new model. Acoustic engineering gives the car a unique personality in all phases of operation. The M exhaust system is easily recognized by the usual Quad Exhaust on the other M-Powered cars.

The new 1 Series M Coupe also features the steering wheel-mounted M Drive button that made its first appearance in the 2005 M5. In the 1 Series M Coupe, the M Button activates a razor-sharp throttle response program for the sportiest driving. This means that the performance characteristics of the engine can be varied according to the driver’s wishes.

As an alternative to normal operating status, the driver can activate M Dynamic Mode (MDM) by means of pushing the MDM Button between the front air vents, raising the intervention thresholds of the DSC system. MDM enables slight amounts of dynamic oversteer under specific circumstances to enable optimum vehicle yaw for maximum performance. Demonstrations at the BMW Performance Center in Spartanburg, S.C. have proven MDM mode to enable the fastest-possible lapping performance while still providing the assurance and protection of Dynamic Stability Control. MDM also facilitates starting off in snow or loose surfaces by means of carefully controlled amounts of wheelspin. And most importantly the DSC may be fully disabled via a long-press of the MDM button (ABS remains active).

A close ratio 6-speed manual transmission is used for power transmission to the rear wheels in the BMW 1 Series M Coupe. It was specially designed to interact with high-torque engines and has been fitted for this purpose with a dry sump cooling system. An upgraded flywheel for high-torque applications is installed between the engine and transmission. The transmission is operated using a very short M gearshift lever. Final drive ratio is 3.15: 1.

Enjoy BMW’s Pictures:-

2011 Maserati GranTurismo MC Stradale Official Shots & Spyshots

Earlier in the year we revealed Maserati’s Prototype of the 2011 Maserati GranTurismo MC Stradale.
Now Maserati has revealed the 2011 MC Stradale which is billed as the “fastest, lightest and most powerful car in the Maserati range.”

The Stradale features an aero kit, matched with high performance brakes, and a Nordschleife tuned suspension for “Pin-sharp handling.”

The Powerunit is complimented by a 4.7-liter V-8 with 457 PS.

It will enables the car to hit the vmax in excess of 300 km/h (186 mph).