A year after the unveiling of the GranTurismo, Maserati will be back at the Geneva International Motorshow with yet another world premiere, the GranTurismo S. The ultimate expression of the Trident coupé's sportiness shifts the emphasis onto performance and driving enjoyment.

Two main novelties are at the heart of the new Maserati: the 440 HP V8 4.7 engine and the electro-actuated gearbox with fast MC-Shift arranged in the Transaxle layout typical of high-performance sports cars that represents the technological DNA of all Maseratis.

The GranTurismo S makes use of the high-performance brake system developed in collaboration with Brembo and introduced for the first time in the automotive field on the Maserati Quattroporte Sport GT S. The system features front brake discs made with dual-cast technology - a dual casting of cast iron and aluminum, paired with aluminum mono-bloc 6-piston brake calipers, ensuring optimized braking performance.

On the exterior the Maserati GranTurismo S is characterised by a number of aesthetic modifications that, although discrete, are highly effective and make the car body appear sportier without abandoning the sleekness of the lines masterfully designed by Pininfarina.

The interior upholstered in Poltrona Frau leather and Alcantara reflects the sporty flair of the Maserati GranTurismo S; the figure-hugging front and rear seats are distinguished by their new dynamic design with horizontal piping on the seats and seatbacks

1.) It offers the same collection of modes as SMG, allowing the driver to dial in a range of response patterns, from low-torque, second-gear starts on snow and ice, to comfort, to track day.

2.) It's the first dual-clutch box to be designed for engine speeds of up to 9,000 rpm, with a transmission fluid cooler to lengthen component life.

3.) Like the new Nissan GTR (but unlike the latest F1 cars), it has launch control. How does launch control work? Take it, BMW:

...all the driver has to do with the car at a standstill and in driving program S6 is move the sports shift lever to the front and hold it in this position. Then, as soon as the starter flag symbol comes on in the instrument cluster, the driver just presses down the gas pedal to automatically obtain the ideal starting speed on the engine. Pressing down the brake pedal lightly with his left foot, in turn, the driver can prevent the car from rolling forward, and by briefly tipping the cruise control lever he is able to finely adjust the desired starter speed. Then, after letting go the selector lever, the BMW M3 accelerates with optimum performance and with slip on the rear wheels controlled by the clutch — if the driver wishes, all the way to top speed.

5.) It sounds like a whole lot more fun than SMG.

Mitsubishi Motors develops S-AWC vehicle dynamics control system & Twin Clutch SST automated manual transmission

S-AWC system
(* Chassis-mounted components on current Lancer Evolution)

Tokyo, July 10, 2007 — Mitsubishi Motors Corporation has developed two new component systems that are expected to feature in the new Lancer Evolution*, due to be launched this autumn. S-AWC (Super All Wheel Control) is an advanced vehicle dynamics control system that regulates drive torque at each wheel. Twin Clutch SST (Sport Shift Transmission) is an automated manual transmission that delivers slicker shifting through the gears while freeing the driver from the need to operate the clutch.

In line with its corporate philosophy, Mitsubishi Motors strives to deliver a dynamic driving experience while making advances to keep drivers safe. Twin Clutch SST and S-AWC do so by making driving more intuitive. Both the systems work to efficiently distribute power appropriate to road conditions, and deliver outstanding control and stability maintained by an "intelligent" system that reads and reflects driver intent in real time.
S-AWC:
The system now adds an ASC*1 (Active Stability Control) feature to the ACD*2 (Active Center Differential), AYC*3 (Active Yaw Control) and Sport ABS*4 (Sport Antilock Brake System) components that have proven themselves in the Lancer Evolution series. Integrated system management of these four components allows regulation of torque and braking force at each wheel. S-AWC also now employs yaw rate feedback control. This allows the system to control each wheel under a wide range of driving conditions, thus realizing vehicle behavior that faithfully reflects driver inputs and allows drivers of all abilities to enjoy sporty motoring with confidence.

Twin Clutch SST:
MMC's new automated manual transmission employs dual clutches to realize power transmission efficiencies on a par with a normal manual gearbox while also allowing slick and swift shifting. Allowing drivers of all abilities to shift rapidly up and down through the gears, Twin Clutch SST delivers satisfying acceleration while also returning superior fuel mileage thanks to its high-efficiency power transmission mechanism. The new transmission also features three operating modes tailored to different situations: from around-town drivability to instant-response and follow-the-line sporty motoring on the open road.

*1, *2, *3, *4: see following for details
1. S-AWC (Super All Wheel Control)

(1) System overview
The S-AWC vehicle dynamics control system integrates management of all its AYC, ACD, ASC and Sport ABS components (see below) while adding braking force control to Mitsubishi Motors' own AYC system. As a result S-AWC elevates drive power, cornering performance as well as vehicle stability under all driving situations, from everyday motoring to emergency evasion maneuvers.

(2) ACD (Active Center Differential)
The Active Center Differential incorporates an electronically-controlled hydraulic multi-plate clutch. The system optimizes clutch cover clamp load for different driving conditions, regulating the differential limiting action between free and locked states to optimize front/rear wheel torque split and thereby producing the best balance between traction and steering response.

(3) AYC (Active Yaw Control)
AYC uses a torque transfer mechanism in the rear differential to control rear wheel torque differential for different driving conditions and so limit the yaw moment that acts on the vehicle body and enhance cornering performance. AYC also acts like a limited slip differential by suppressing rear wheel slip to improve traction. The first component of its type, AYC was first used in the Lancer Evolution IV launched in April 1996. It then took an evolutionary step forward in the Lancer Evolution VIII launched in January 2003 as the Super AYC when it switched from the use of a bevel gear to a planetary gear differential, thereby doubling the amount of torque it was able to transfer. In comparison to the system used in the Lancer Evolution IX, AYC now features yaw rate feedback control using a yaw rate sensor and also gains braking force control. Accurately determining the cornering dynamics on a real-time basis, the system operates to control vehicle behavior through corners and realize vehicle behavior that more closely mirrors driver intent.

(4) ASC (Active Stability Control)
The ASC system stabilizes vehicle attitude while maintaining optimum traction by regulating engine power and the braking force at each wheel. Taking a step beyond the previous generation Lancer Evolution, the fitting of a brake pressure sensor at each wheel allows more precise and positive control of braking force. ASC improves traction under acceleration by preventing the driving wheels from spinning on slippery surfaces. It also elevates vehicle stability by suppressing skidding in an emergency evasive maneuver or the result of other sudden steering inputs.

(5) Sport ABS (Sport Anti-lock Braking System)
ABS allows the driver to maintain steering control and keeps the vehicle stable by preventing the wheels from locking under heavy braking or when braking on slippery surfaces. The addition of yaw rate sensors and brake pressure sensors to the Sport ABS system has improved braking performance through corners compared to the Lancer Evolution IX.

(6) S-AWC control system
The use of engine torque and brake pressure information in the regulation of the ACD and AYC components allows the S-AWC system to determine more quickly whether the vehicle is accelerating or decelerating. S-AWC also employs yaw rate feedback for the first time. The system helps the driver follow his chosen line more closely by comparing how the car is running, as determined from data from the yaw rate sensors, and how the driver wants it to behave, as determined from steering inputs, and operates accordingly to correct any divergence. The addition of braking force regulation to AYC's main role of transferring torque between the right and left wheels allows S-AWC to exert more control over vehicle behavior in on-the-limit driving situations. Increasing braking force on the inside wheel during understeer and on the outer wheel during oversteer situations, AYC's new braking force control feature works in concert with torque transfer regulation to realize higher levels of cornering performance and vehicle stability.
Using integrated management of the ASC and ABS systems allows S-AWC to effectively and seamlessly control vehicle dynamics when accelerating, decelerating or cornering under all driving conditions. S-AWC offers three operating modes: TARMAC for dry, paved surfaces; GRAVEL for wet or unmade surfaces, and SNOW for snow covered surfaces. When the driver selects the mode best suited to current road surface conditions S-AWC operates to control vehicle behavior accordingly and allow the driver to extract the maximum dynamic performance from his vehicle.

2. Twin Clutch SST (Sport Shift Transmission)

(1) The mechanism
Twin Clutch SST puts odd (1st, 3rd, 5th) and even (2nd, 4th and 6th) gears on separate input shafts, each connected to an individual clutch. With both clutches under precise system control, this arrangement allows lightening-fast, smooth and lag-free gear changes with no interruption in power delivery. Using clutches instead of a torque converter to transmit power makes the Twin Clutch SST simpler in structure and reduces power transmission losses for higher transmission efficiency that leads to improved fuel mileage.

(2) Drive modes
Twin Clutch SST allows the driver to switch between three shifting programs — Normal, Sport and S-Sport — to cover the full range of driving situations, from town use to sporty motoring on open roads.
a. Normal mode
For use around town and other normal driving situations, Normal mode scheduling uses relatively low-speed shift points to deliver unobtrusive shifting for maximum comfort together with optimum fuel economy.
b. Sport mode
For use when driving in the mountains or when engine braking is required, Sport mode scheduling uses higher shift points and quicker shifting to deliver instant throttle response that instills in the driver a closer man/machine relationship.
c. S-Sport mode
Compared with Sport mode, S-Sport mode scheduling keeps the engine turning at higher revs while allowing lightening-fast shifting.

Related:
DSG Rivalry: Ford Betting on Getrag Dual-Clutch System for Future Models [internal]

Straight off the editor's desk from the News That Surprises No One Department comes more info on Porsche's coming double-clutch manumatic gearbox. (That means one clutch handles the odd gears while a separate clutch toggles the evens.) According to the UK's What Car, they're calling the tranny, "Porsche Doppel Kupplungen," or PDK for short (making it as easy on the options sheet as VW's DSG). But when will it arrive, and in what models? A report from last year indicated the heirs of Ferdinand will offer the new box across all model lines. So keep your ears pointed northeast, because the noise Farago makes when the PDK shows up in a Boxster is going to make Howard Dean seem like a mute. And by shaving off a heap of milliseconds between shifts, it could mean the Tiptronic 911 Turbo's 3.4 seconds to 60 mph could be quite a laugh one day. – Jonny Lieberman

Porsche to launch 'PDK' dual-clutch gearbox [Motor Authority]

Related:
Leaked Dealer Memo Confirms DSG-Style Box for BMW M3; Seven-Speed DSG Manumatic on the Way; Sportomatic! Next Porsche 911 to get DSG, Direct-Injection; Porsche Working up Seven-Speed DSG for Entire Line; DSG Rivalry: Ford Betting on Getrag Dual-Clutch System for Future Models [Internal]

Whither the autoboxes and CVT clockworks? Automotive News is reporting Volvo's S40 and V50 oil burners in Europe will come with dual-clutch transmissions, which can be shifted like manuals or run in automatic mode, starting in late 2007. The cars won't be getting the slick Borg-Warner box that turned once manual-only VW/Audi heads into DSG-paddling fools; Volvo's using a similar setup from Getrag, its joint-venture transmission partner. But that's only the appetizer. As a main course, Ford will eventually use the system, dubbed Powershift, in the majority of its European line, including Volvos, Land Rovers and Mazdas, as well as Ford brand cars like the Focus and Focus C-Max, replacing automatics and continuously variable boxes. As for the US, a source from Ford told AN the company is considering dual-clutch transmissions for some "smaller" models. That forces the question, are the manual's days numbered? (note: DSG shown) – Mike Spinelli

Related:
Paris Wrap-up: Aston Martin Vantage to Get New Sportshift; Competition for DSG: Chrysler to Build Dual-Clutch Gearbox; Porsche Working up Seven-Speed DSG for Entire Line; Robot, Shift: DSG to Replace Autoboxes on VW's Transverse-Engined Cars; The Truth About The DSG: So Long Stick Shift [internal]