Saab 9-4X BioPower Concept

Concept Cars 16 Jan 2008
Saab 9-4X BioPower Concept

The Saab 9-4X BioPower Concept confirms the company’s plans to enter the crossover segment with a dynamic vehicle inspired by Scandinavian design values and respect for the environment.

Saab 9-4X BioPower ConceptThe concept, unveiled by Saab at the 2008 Detroit Motor Show, has progressive design features combined with a responsible appeal based on BioPower engine technology and the all-wheel-drive system.


The design of the Saab 9-4X BioPower Concept reflects a Scandinavian principle of simplicity of form, with clean and uncluttered lines, free of any cladding, moldings or roof bars, and defining “ice-block” surface and lighting themes.

The progressive frontal styling and interior design elements also draw inspiration from the Saab Aero X concept.

Innovative load-carrying solutions include a unique ski equipment stowage system, developed with mountain sports specialists Salomon.

Saab 9-4X BioPower ConceptThe Saab 9-4X BioPower Concept was developed by a team headed by Anthony Lo, GM Europe’s Director of Advanced Design, in cooperation with designers and engineers from the Saab Brand Center in Sweden.

“We focused on incorporating design themes from the Aero X in a crossover execution, adding functional, lifestyle features to support the activities of customers using this type of vehicle,” Lo said.

“This concept is a clear statement of what our brand is about,” said Jan Åke Jonsson, Saab Automobile Managing Director.

“It is also an important next step in our plans to enter new market segments with distinctive product offerings.”


Interior design renderingThe driver-focused cockpit in the sporty, four-seater cabin features an Aero X-inspired “clear zone,” with a flush-mounted starter button and infotainment controls, that sweeps up from the central console to the main display screen.

Signature green lighting is used for all instrument illumination, while other subtle references to Saab’s aviation heritage include the “altimeter” speed read-out scale and aircraft-shaped trim on the steering wheel.

"The panoramic glass roof is in harmony with a car designed to deliver the enjoyment of outdoor pursuits."

Cutaway IllustrationThe concept features an innovative storage system for stowing skis and equipment inside the car, developed in partnership with Salomon.

The rear cargo deck features a sliding floor with a fold-out aluminum ski holder, through which up to three pairs of skis and poles can be slotted.

Boots are stowed in an underfloor, heated compartment and, for maximum practicality, the entire rear cargo area is covered in a waterproof and scratch-resistant rubber skin.

Technical Features

The compact, all-aluminum, four-cylinder BioPower engine combines the benefits of turbocharging, direct injection and variable valve timing for the first time with high-octane E85 fuel (85 percent ethanol and 15 percent gasoline).

Saab 9-4X BioPower Concept Saab 9-4X BioPower Concept

The 2.0-liter turbo engine is based on the “rightsizing” principle – achieving sufficient levels of performance with a smaller, more efficient engine – and delivers 300 horsepower (221 kW) and a torque of 295 lb.-ft (400 Nm), together with substantially reduced CO2 emissions.

The key enabler for rightsizing is turbocharging technology, which Saab pioneered 30 years ago.

The unit is mated to the Saab XWD cross-wheel-drive system, which splits torque delivery between both the axles and the rear wheels, via an electronically controlled rear limited-slip differential (eLSD).

Saab 9-4X BioPower Concept - debut at Detroit 2008 The Saab 9-4X BioPower Concept debuts at the
2008 Detroit Motor Show

Safety features include rollover sensing for deployment of the side curtain air bags and new Active Head Restraints (SAHR) with a revised head restraint movement that reduces the risk of severe neck injuries.

About E85 Fuel

E85 has a higher octane rating (104 RON) than gasoline, making it more resistant to harmful pre-detonation, or “knocking,” when the fuel/air mixture is compressed in the cylinder.

To fully exploit this advantage, the engine has a raised compression ratio, 10.5:1, instead of 9.2:1 for a gasoline-only application. It retains its flex-fuel capability because the Saab engine management system adjusts the ignition timing and turbo boost pressure to ensure there is no pre-detonation with gasoline.

Engine efficiency is also improved by the use of direct injection (DI) and continuously variable valve timing (VVT) on both the inlet and exhaust sides. DI delivers fuel directly into the combustion chamber, providing a more complete burn of the fuel/air mixture to give more power with reduced fuel consumption.

(Source: Saab)

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