2004 Subaru B9 SC Hybrid Concept

For the first time, in 2004, Subaru showcased two advanced-technology concept models in the US, unveiling both the B9 SC hybrid sports roadster and the R1e electric commuter car at the North American International Auto Show. Both models also displayed elements of Subaru’s changing design style, pioneered under the stewardship of the brand’s chief designer, Andreas Zapatinas.

The 2-seater B9 SC is a unique blend of high-performance and minimal environmental impact, whilst remaining both exciting and fun to drive. The thinking behind this concept is that hybrid technology will provide the evolutionary link between the internal combustion engine and the electric fuel cell.

Revolutionary hybrid technology

The Sequential Series Hybrid Electric Vehicle (SSHEV) system employed in the Subaru B9 SC is unlike conventional hybrid systems. Traditionally, hybrid vehicles use an electric motor as an assistant to the internal combustion engine. In the B9 SC, however, a powerful electric motor is teamed with a 2.0-litre DOHC Subaru boxer 4-cylinder engine. At low and medium speeds, the petrol engine is used mainly to charge the lithium-ion batteries. Over 50 mph, the petrol engine takes full control of the vehicle. This way, the internal combustion element of the B9 SC runs at its most efficient speed. For hill climbs or for rapid acceleration, the SSHEV system is capable of combining output from both the petrol engine and the electric motor by means of a specially designed 2-way clutch.

Besides the SSHEV technology, the B9 SC also features height-adjustable suspension, large wheels with run-on-flat tyres and Symmetrical All-Wheel Drive, to ensure that it is a sports car which can perform on all surfaces and under a variety of driving styles. The lower body boasts protective paintwork, which also wraps over the upper portion of the body behind the doors, giving homogeneity to the car’s design. In addition, the B9 SC’s windscreen is fabricated from a special reflective mirror-like glass.

Bold design direction

Under Andreas Zapatinas’ direction, the Subaru brand is forging a brand new design direction in an attempt further to highlight the marque’s unique characteristics. Once head of design at Alfa Romeo, Zapatinas holds firm to the belief that Subaru’s broad appeal – from road drivers to rally enthusiasts – can be encapsulated in one design concept. From the front, the B9 SC portrays the most striking element of this new design: the front grille and air intakes, which are sculpted in such a way as to be reminiscent of an aircraft wing. The new design chief and his staff took inspiration for this element from Subaru’s aviation heritage. The repetition of this feature on the R1e is a clear statement of intent, and of the future design of Subaru models worldwide.








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© 2006 Martin Hemmings and Gary Tsang for www.sport-cars.org