Subaru BRZ Concept STI shows up ahead of 2011 LA Auto Show

Article by Christian Andrei, on November 1, 2011

Subaru announced today that it will bring the BRZ Concept STI at the 2011 Los Angeles Auto Show. As its name says it, the first BRZ concept strongly hints at the styling of the production BRZ and features unique STI performance features. The exterior features the WR Blue Pearl II color, a new generation of the iconic WR blue paint scheme that has adorned both racing production STI's.

Regarding the design, the car is a little but different than the Toyota FT-86 and shows bold rear fender flares, a big rear trunk spoiler and a new rear air diffuser with integrated exhaust system.

Under the hood, the Subaru BRZ will carry a 2.0-liter naturally-aspirated four-cylinder boxer engine, but no details regarding the output were released.

The BRZ Concept STI features an STI-tuned suspension, Brembo brakes and unique 18-inch wheels and tires.

The Subaru-engineered and built chassis boasts a rigid frame housing a two-plus-two interior and front engine/rear-wheel drive layout. Moreover Subaru also confirms the RWD Subaru BRZ production in spring 2012.

The BRZ Concept – STI is a clear illustration of what customers can expect from the Subaru. It includes a variety of features like the Brembo brakes, 18-inch wheels, and a STI-tuned suspension. The chassis that is a trademark of Subaru has a front engine and rear-wheel layout.

It also has a rigid frame that houses the interior in a two plus two configuration. Since the engine has been mounted low and put towards the back of the engine compartment, it gives an almost perfect balance. Aside from being lightweight, the BRZ Concept – STI offers razor-sharp reflexes and low polar moment for perfect handling.

The low placement of the engine also has a purpose. It allows for a low and blade-like design for the hood. With a short front and overhangs in the rear, it reduced the yaw’s moment of inertia. Though Subaru models have always had a low center of gravity and ideal weight distribution, the Subaru BRZ – STI is lower by 4.7 inches and is closer to the center by 9.4 inches.

Subaru BRZ rear-wheel drive sports car was originally a Subaru-Toyota Motor Corporation collaborative project designed to have outstanding steering responsiveness that ensures exciting drivability for everyone. The BRZ is powered by a Horizontally-Opposed Boxer engine set at a lower position compared to other Subaru cars, making its centre of gravity the lowest among all production cars. As a result, the BRZ has amazing handling, thanks also to its lightweight chassis. The car really does exemplify Subaru’s focus on elevating driving pleasure through providing "Pure Handling Delight."

Concept

The Subaru BRZ was developed with an underlying philosophy of "Pure Handling Delight." The Horizontally-Opposed Boxer engine is fundamentally compact and lightweight with a low centre of gravity. These qualities are fully capitalised by its very low placement at the central area of the chassis. Consequently, the BRZ has one of the lowest centres of gravity in any car. It is truly a car that inspires excitement as well as confidence for anyone.

Design

The Subaru BRZ’s low-set Boxer engine sits upon a sub-frame engineered as part of an "ultra-low centre of gravity package". This design also lowers the driving position in a similar way as other sports cars. From ground to roof, the Subaru BRZ measures 1,300mm, but its width is 1775mm, giving it the proportions of a sleek coupe. However, it accommodates 4 people and has considerable boot capacity. This means that the BRZ is also a very practical choice for long trips, more so than other sports cars.

Press Release

Subaru BRZ Concept – STI to Debut at Los Angeles International Auto Show

Subaru of America, Inc. announced today that it will show an all-new concept version of its upcoming BRZ sports car at the 2011 Los Angeles International Auto Show. Dubbed the Subaru BRZ Concept- STI, the concept car represents the next step in lightweight performance sports cars combined with the race-bred tuning of Subaru Technica International (STI).

The first BRZ concept car to be shown with bodywork, the Concept – STI strongly hints at the styling of the production BRZ and features unique STI performance features.

Styling

Sleek, low and tightly coiled bodywork blends with STI performance touches for a sporting profile. A hexagonal front grille, hawk eye headlights and fin-shaped fog lamps are instantly recognizable as Subaru. The exterior colour "WR Blue Pearl II" is a new generation of the iconic WR blue paint scheme that has adorned both racing production STI's.

The body is set-off with aero-tuned lower front spoiler and unique rear fascia, a rear wing for added down-force and a carbon-fiber roof to lower its already record setting center of gravity specification. The rear design features bold rear fender flares and large rear-diffuser giving way to polished stainless-steel quad-tailpipes. Vented rear bumper corners contribute to improved aerodynamics performance.

Engine

The concept car employs the totally new Subaru "FA" Boxer engine exclusively designed for the RWD BRZ sports car. In order to achieve properties best-suited for the BRZ sports car, the overall structure of this 2.0-liter naturally-aspirated four-cylinder boxer engine has been designed with a square bore and stroke of 86 X 86 mm. The inherent qualities of the Subaru Boxer engine were mated to a direct injection fuel system, which further improves combustion efficiency, running smoothness up to high rpm and high environmental standards.

Chassis

The lightened Concept – STI features an STI-tuned suspension, Brembo brakes and unique 18-inch wheels and tires. The Subaru-engineered and built chassis boasts a rigid frame housing a two-plus-two interior and front engine/rear-wheel drive layout. With the engine mounted low and rearward in the engine compartment to allow for near-perfect balance and one of lowest CoG's of any car on the market.

The BRZ Concept – STI is designed to combine lightweight, a low polar moment and razor-sharp reflexes for the ultimate handling machine. The low engine placement also allows for a very low and blade-like hood design. Short front and rear overhangs reduce the yaw moment of inertia.

Compared with other Subaru models, which already feature a low centre of gravity and optimal weight distribution, the engine in the Subaru BRZ - STI - sits even lower, 4.7 inches lower in fact and is positioned 9.4 inches closer to the centre of the chassis.

The first RWD Subaru, the production Subaru BRZ will begin production in spring 2012 as the only mass-produced front-engine, Boxer engine rear-wheel drive sports car in the world.

SUBARU BRZ Concept – STI Specifications
Body size (Overall: Length x Width x Height): 166.7 X 70.9 X 50.4 inches
Wheelbase: 101.2 inch
Engine: Subaru Boxer "FA" engine - 2.0-liter naturally-aspirated four-cylinder Horizontally-Opposed Boxer engine
Tire size: 215/45R18 (Front), 225/45R18 (Rear)

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