Saab concept gives E100%

Saab concept gives E100%

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Photos by -Autonet.ca
Daniel Barron
Published: 12 03 2007

If you thought a vehicle that uses 85% ethanol fuel was impressive, just wait until you see what Saab has in store.

The automaker has unveiled the BioPower 100 concept, a car that runs on 100% bioethanol fuel and even uses a turbocharged engine to produce 300-horsepower. That's double the power of the vehicle the BioPower 100 is based on, the Saab 9-5 SportCombi.

The BioPower 100 uses a modified 2.0-litre, 4-cylinder engine - the same one found in the current 9-5 range. The concept's engine takes advantage of modifications to the engine management system and internal components, enabling it to exploit the high octane benefits of E100 fuel by using a higher compression ratio, together with more boost pressure. This means that it can produce high horsepower numbers, whereas the production gasoline engine produces 150-horsepower.

The BioPower 100 puts up some impressive numbers, such as a 0 - 62 mph acceleration time of just 6.6 seconds and 50 – 75 mph (fifth gear) in only 8.2 seconds. It has a limited top speed of 250 km/h and almost 85% of the vehicle's 295 lb.-ft. of torque is available at only 2,000 rpm.

In ambient temperatures below 60°F, the chemistry of E100 makes it resistant to vaporization, making it difficult to start the engine. To overcome this issue, the BioPower 100 Concept has an experimental fuel heating system, using small heating elements in the inlet ports downstream of the injectors. When the engine is cold, these elements warm the incoming fuel sufficiently to allow it to vaporize. Shortly after start-up, the function is automatically deactivated.

Saab says that future versions of the vehicle could be coupled with electric hybrid technology for even more fuel savings, since E85 fuel consumption is about 30% higher than gasoline and the optimized BioPower 100 engine is expected to yield a near 10% gain against this. The concept is still classified as a flex-fuel vehicle though, meaning it can run on any combination of E100, E85 or regular gasoline.

The BioPower version is visually distinguished from the production 9-5 version by styling tweaks such as ‘ice block' front and rear light units – a theme seen on the 9-3 SportCombi – and 19-inch 'turbine' alloy wheels inspired by those on the Saab Aero X concept. To help show its performance potential, it also shows off a dual pipe rear exhaust system, with tailpipes similar to those of the Aero X Concept.

It's not all about looks, though, as the BioPower 100 Concept is fitted with a limited-slip differential and larger front brake discs (13.6 inches) and calipers, while using the sport chassis settings of Saab 9-5 Aero SportCombi.

The interior is upholstered in white leather, complemented by the main fascia and door trims, which are finished in black leather overlaid with a carbon fiber-effect pattern. The car is also equipped with Saab's innovative AlcoKey, a pocket-sized device that drivers have to blow into before their vehicle can start. If alcohol is detected above the legal limit, the vehicle will be immobilized.

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