Subaru Hybrid Tourer Concept

Subaru has condensed its DNA, developed over many years around the Subaru’s core technology of “Symmetrical All-Wheel Drive (AWD)” and “Horizontally-Opposed Boxer Engine”, into the integration of a luxurious and high-quality cabin atmosphere and an eye-catching sculpted body. The concept car features Subaru’s latest evolutions in handling agility, riding comfort and superior safety performance. It proposes Subaru’s vision of a future grand touring car that excels in environmental friendliness thanks to Subaru’s unique hybrid system.
Subaru imagined wings with a feeling of freedom and confidence for driving far and wide in any environment. A luxurious and comfortable cabin, and advanced driving performance are contained within a sculpted aerodynamic form. The design features a combination of bright, open glass areas with a solid, reliable body.
The original point of the ideal grand touring car is its interior design, featuring four independent and comfortably positioned seats. Passengers are enclosed within an atmosphere that provides a surpassing feeling of openness and stress-free reassurance, through the further pursuit of a human-centered philosophy, the essence of Subaru car design, and the incorporation of functions that are friendly to passengers.
The top of the dashboard is movable up and down to provide an optimal driving environment for the driver according to driving conditions. A flat floor in the rear seat was achieved even with the implementation of AWD, for improved use and movement inside the cabin. Specialized shielding is incorporated in the windshield to reduce eyestrain on the driver. New leather covering developed with superior breathability and a ventilation function is used in the seats for improved comfort and texture.
In addition to refinements to Subaru’s core technology such as Symmetrical AWD and Horizontally-Opposed Boxer Engine, further enhancements were made for improved environmental friendliness, driving performance and high safety performance by offering a next-generation power unit system and advanced safety technologies.
2.0-liter Horizontally-Opposed direct fuel-injection turbo gasoline engine
The Horizontally-Opposed turbo gasoline engine, with a reputation for powerful acceleration, is combined with a direct fuel-injection system for improvements in fuel efficiency and reduced emissions, and improved torque and response in practical range. This evolution in Subaru turbo technology excels in both environmental friendliness and engine performance.
Lineartronic, Subaru’s new generation automatic transmission, achieves further improvements in both fuel efficiency and driving performance by reinforcing parts for use with the high-power output of a turbo engine.
To further enhance the appeal of the Symmetrical AWD system, this unique hybrid two-motor system features a power/drive motor in the front and a drive motor in the rear.
At start-up and extremely low speeds when fuel efficiency is low, such as when driving the car into a garage, the rear motor is used primarily to allow driving without utilizing the power of the engine.
During normal driving, the front engine is primarily used. The direct fuel-injection turbo gasoline mated with the Symmetrical AWD offers a whole new, Subaru driving experience.
During acceleration, the rear motor assists the driving power of the engine to achieve advanced driving performance.
Further, when accelerating uphill, the front motor, which is normally used as a power generator, assists to drive the front axle for improved performance.
The implementation of a non-idling function that stops the engine when the car comes to a halt reduces unnecessary fuel consumption.
The use of a high-performance lithium battery is based on experience and know-how achieved with the Subaru Plug-in STELLA electric vehicle, launched this summer. This includes the use of a precise energy management system and regenerative brake controls, for improvements in excellent fuel efficiency.
Length x Width x Height: 4,630 x 1,890 x 1,420mm
Engine type: 2.0-liter Horizontally-Opposed direct fuel-injection turbo
gasoline engine
Max output of Motor: 10kW (Front) / 20kW (Rear)
Transmission type: Lineartronic
Drive train: Symmetrical All-Wheel Drive with 2 motors assist
Battery type: Lithium-ion battery
Subaru has integrated its unique driving assist system, EyeSight, with vehicle-to-vehicle and road-to-vehicle communication technology. EyeSight includes an assist collision prevention support system that uses its unique stereo camera technology to recognize a wide range of driving environments. This next-generation driver assistance system provides improved safety and peace-of-mind for passengers, and represents a major evolution in collision detection performance.
The advanced environment recognition performance of EyeSight, using a stereo camera and a specialized 3D image processing engine, excels at pre-collision safety through the recognition of both pedestrians and cyclists as well.
Wide-ranging driving conditions that cannot be covered by a stereo camera alone are acquired through vehicle-to-vehicle and road-to-vehicle communication technology, which is then synchronized with EyeSight for a further evolution in preventative safety. Specifically, this system continuously detects vehicles that move into and out of blind spots, and advises the driver on appropriate driving maneuvers.

Subaru

Mazda MX-5 Superlight

“I’ve dreamed of building a Mazda MX-5 with this kind of radical form for a long time,” says Peter Birtwhistle, Mazda Motor Europe’s Chief Designer, referring to the project. “Now that weight reduction has become a dominant factor in automotive development, the time is ripe for it. We show how lightweight a car today can be.”
His design team reduced the MX-5 down to its core attributes to create a pure roadster. Development of the production model MX-5 focussed on the bond between driver and co-pilot to the roadster, the car’s driving dynamics and its open-top experience. The goal of the MX-5 Superlight version concept was to strengthen these bonds even further. By doing this without a windshield, the retractable top and its frame, designers achieved an important step in this direction. As the concept MX-5 Superlight version, the allweather production roadster has mutated into a driving machine that lets sports car enthusiasts enjoy the natural surroundings unfiltered and tangible. Not only does the wind blow unimpeded during driving, pilot and co-pilot can also experience the sounds, smells and temperature changes of their immediate surroundings. And finally, the show car’s intense bond between the driver and the technology of the vehicle gives it a unique closeness that can only be found in stronger form in the cockpit of a race car.
Mazda designers created special roll-over bars, not only because they are very sporty-looking, but also to contribute to aerodynamic efficiency. These also make it clear that roll-over protection is important in this concept. And they prevent wind turbulence around the heads of the passengers, from whom the law would require the wearing of helmets while driving.
By removing equipment not vital to driving, and by replacing vital things with components that support the unique concept of the vehicle, designers sharpened the character of the MX-5.
Because there is no windshield, for instance, there is obviously no need for wipers. The roadster show car’s completely open design makes the need for outer door handles, side windows and their openers unnecessary. A single, filigree aluminium, wide-angle mirror gives a good view of the road behind. It’s placed inside an extension of the bonnet. Front and rear lights are the same as those of the production model with additional LED lamps at the front, and brake lights at the back of each roll-over bar, which contribute to the roadster’s sporty look.
The lack of a windshield required an extension of the original aluminium bonnet into the cabin. The attached sheet here is made of lightweight carbon fibre and provides a hood for the dashboard frame.
This also changed the proportions of the body’s design, making the front of the car longer and the passengers seem like they are sitting further back towards the rear-drive axle, all of which is enhanced by the massive roll-over bars and their aerodynamic cladding. The MX-5 Superlight version translates the dramatic proportions of historical race cars into a very modern form.
The purity in design of the exterior also characterizes the interior design, which does not have aesthetics as ultimate goal, but was conceived to contribute to reducing vehicle weight. Driver and passenger of the MX-5 Superlight version are greeted by racing bucket seats made of ultra-lightweight carbon fibre. They are slide adjustable and upholstered with the same saddle coloured leather as the armrests, the steering wheel, and the lightweight aluminium shift lever and hand brake. Colour-coordinated four-point seatbelts hold the driver and passenger firmly in their seats.
The bonnet extension into the passenger cell provides a canopy for the dashboard, which makes the dashboard look smaller than the production MX-5. Made of lightweight plastic reinforced with fibreglass, it contains the same instruments as the production MX-5. These are held in place by a dashboard frame made of lightweight carbon fibre. Like a purebred race car, the MX-5 Superlight version has an ignition button in the centre of the dashboard, along with two emergency kill buttons for immediate fuel and electricity cut-off.
Supplying air and climate control to the open passenger compartment is only possible in limited form, so the show car has no air conditioning and no fans. Air-flow is increased when the roadster accelerates, and only small air vents are needed. The interior is made without any trim. Sound insulation mats and rugs do not meet the requirements of a purist roadster like this and are not used at all.
Also made of ultra-lightweight carbon fibre is the “floating-design” centre console with iPod® adaptor and the triangular reinforcements in the trimless doors. Driver and passenger can rest their arms here while driving.
The Mazda MX-5 Superlight version show car is fully-drivable, but there are no plans to produce it in the near future. Under the bonnet is the cultivated and frugal MZR 1.8-litre four-cylinder engine paired to the production roadster’s five-speed manual transmission. It develops 93 kW/126 PS of maximum power at 6,500 rpm. For an appealing engine sound, there’s a Mazdaspeed cold-air intake made of polished and powder-coated aluminium and a Mazdaspeed exhaust system, both of them specific to the MX-5 Superlight version. These systems deliver more intake air-flow, and less exhaust-gas back pressure.
The engine sound is designed to suggest an engine with much higher displacement than the concept actually has. During charge cycles, a high-resonance bubbling sound in the muffler delivers the exciting sporty sound you expect from a very powerful engine.
The show car is designed to provide improved driving dynamics as well, and uses a four-piston, fixedcalliper brake system with perforated discs that, because of their size required an increase in track of 50 mm. A specially tuned chassis with a Bilstein® B16 coil-over suspension and Eibach® stabilisers give the body of the MX-5 Superlight version a ground clearance that is 30 mm lower than the production MX-5. Its sporty hydraulic power-assisted rack and pinion steering system is the same as that of the regular roadster. Its linear steering, coupled to a precise-shifting five-speed manual transmission with short shift travel, have contributed to the character of the world’s most successful roadster for years.
Also from the production model are the roadster’s 205/45 R17 original-equipment tyres and alloy wheels from the 2.0-litre version, which are some of the lightest on the market today at less than 8 kg.

There was not enough time for small-scale modelling. The designers put their ideas to paper, decided which were best, then modelled these directly onto a full-scale clay model. The cockpit was created together with the interior door braces. All components were then digitalized. This data was sent to an external studio for prototype build, where the parts of fibreglass-reinforced plastic and carbon fibre were made and later fitted. This method was also used to create the centre console with gear shift lever and hand brake.
Parallel to this, a production MX-5 Roadster with an MZR 1.8-litre powertrain was stripped
of all components that would later be replaced.
Under the leadership of Mazda’s design team and chassis engineers, a drivable “blank” of the MX-5 Superlight version was created that weighed well under 1,000 kg, while respecting the original roadster’s ideal 50/50 weight distribution. Mazda test drivers then drove the roadster around a closed track with experts from Bilstein® and Eibach®, in order to ascertain the feasibility of the project.
The results amazed even the most experienced engineers: with hardly any re-working, the “light” MX-5 version was an easy-to-control, safe-driving roadster that displayed agility, great driving dynamics and acoustical appeal.
Final assembly began with painting the body in white colour, and simply polishing the original MX-5 aluminium bonnet. Then the racing seats, steering wheel, gear shift lever and hand brake were upholstered in leather and installed in the show car. This was followed by the installation of all previously-built carbon fibre components. And at the end, Mazda designers installed the centre console, the dashboard and instruments, seatbelts and roll-over bars.

Mazda

Mercedes-Benz SLS AMG

The new super sports car from Mercedes-Benz and AMG dazzles with its unparalleled technology package: an aluminium space-frame bodyshell with gullwing doors; an AMG 6.3-litre, front-mid V8 engine with 420 kW/571 hp peak output, 650 Nm of torque, and dry sump lubrication; seven-speed dual-clutch transmission in a transaxle configuration; and sports suspension with aluminium double-wishbones. It’s a unique combination that guarantees supreme driving dynamics. The car’s ideal weight distribution between the front and rear axles (47 to 53 percent respectively), its low centre of gravity and DIN kerb weight of 1,620 kilograms emphasize the outstanding sports car concept. The Gullwing model accelerates from 0 to 100 km/h in 3.8 seconds and has a top speed of 317 km/h (electronically limited). The fuel consumption of 13.2 litres per 100 kilometres (combined) is best-in-class (all values provisional). The purist design of the new Mercedes-Benz SLS AMG dazzles with its passionate sportiness and reinterprets the breathtaking design of the Mercedes-Benz 300 SL. The stylistic highlight is without a doubt the gullwing doors, which impart the SLS AMG with incomparable charisma. The long bonnet, the low greenhouse positioned far back, and the short rear with the extendable rear spoiler symbolise dynamics, as do the long wheelbase, the wide track, and the large wheels. It is not just the gullwing doors that awaken reminiscences of the Mercedes-Benz 300 SL. The wide radiator grille with the large Mercedes star, the wing-like cross fin on the bonnet and the vehicle flanks are also reminiscent of the legendary sports car.
Aviation engineering provided the inspiration to the Mercedes-Benz designers for the interior. The characteristic styling feature is the dashboard, whose powerful and dramatic wing-shape makes for an impression of width. The four prominent dashboard air vents with their adjustable, cruciform nozzles are reminiscent of a jet’s engines. The elongated centre console made of solid matt metal also takes up the plane cockpit theme. Among other things, the centre console incorporates the AMG DRIVE UNIT, which enables SLS owners to customise their vehicle set-up. The AMG SPEEDSHIFT DCT 7-speed sports transmission is operated by means of the E-SELECT lever, which resembles a jet’s thrust control. Despite the low seating position typical of a sports car, the wide opening gullwing doors ensure easy entry and exit. The gullwing doors require less room to open than do conventional coupe doors and can be completely opened in standard sized garages.
The SLS is taking a new approach in its body concept. For the first time ever, Mercedes-Benz and AMG are presenting an automobile, whose chassis and body are made of aluminium. This leads to significant weight savings compared to the traditional steel construction, as shown by the car’s DIN kerb weight of only 1,620 kilograms. The newly developed aluminium space-frame bodyshell combines intelligent, lightweight design with high strength - and thus benefits the excellent handling dynamics. The aluminium space frame is 45 per cent aluminium profiles, 31 per cent aluminium panelling, 20 per cent cast aluminium and four per cent steel. The use of ultra high-tensile, hot-rolled steel in the A-pillars provides a further increase in occupant safety. The shell weighs 241 kilograms - an absolute peak value in the super sports car segment. The highest possible degree of passive safety is guaranteed for the occupants by the vehicle's standard equipment, which includes three-point seatbelts, seat-belt tensioners, belt force limiters, and eight airbags.
The heart of the SLS is a powerful eight-cylinder engine with dry sump lubrication. The AMG 6.3-litre V8 produces 420 kW/571 hp at 6,800 rpm and develops a maximum torque of 650 Nm at 4,750 rpm. The SLS accelerates from 0 to 100 km/h in 3.8 seconds and has an electronically limited top speed of 317 km/h (all figures are preliminary). The SLS AMG consumes 13.2 litres per 100 kilometres (combined, preliminary figure). Efficiency-enhancement measures include not only the LDS cylinder bore linings but also a need-based fuel delivery and the recovery of braking energy.
The AMG 6.3-litre V8 engine delivers its power to the rear axle via a dual-clutch transmission permanently connected to the engine housing via a torque tube. A carbon shaft rotates at engine speed inside the torque tube. Power transfer is via the new AMG SPEEDSHIFT DCT seven-speed sports transmission. This dual-clutch transmission boasts fast gear changes with no interruption of tractive force and offers four driving modes. The mechanical differential lock guarantees optimum traction.
All four wheels are guided on dual A-arms with track rod. The A-arms, the steering knuckles and hub carriers at the front and rear axles are made of aluminium. The Gullwing model comes with a 3-stage ESP® as standard. The AMG high-performance brake system with composite brake discs on the front axle ensures short braking distances. Even better braking performance is offered by the optional ceramic-composite brake system. Weight-optimised AMG light alloy wheels in accordance with the new, innovative flow-forming principle, 9.5 x 19 inches at the front, and 11.0 x 20 inch at the rear, are fitted with 265/35 R 19 tyres up front and 295/30 R 20 tyres at the rear.
The reinterpretation of the Gullwing model will celebrate its market launch in spring 2010. The price will be 177,310 euros (incl. 19% VAT).

Mercedes