Saab rolled out two new concept cars tonight in advance of the Geneva Motor Show. Seen for the first time was the Saab 9-X BioHybrid and Europe got its first glance at the Saab 9-4X BioPower.

The 9-X BioHybrid is planned to have a 200 horsepower, 1.4-liter turbo engine, running on bio fuels. Also operating as a hybrid, the car emits an amazingly low 105g/km of CO2.

Unfortunately, the 9-X BioHybrid we saw had no engine, and ran on 6 hp (human power; see photo gallery).

With wheels inspired by turbine engines, and a body made to resemble a fuselage to recall Saab's heritage as an aircraft designer. Theoretically, this car's body “reshapes” above 70 kph, with an automatic rear roof spoiler, an extending rear upper body, and an underbody diffuser extended off the rear bumper.

The white and black interior on the concept looked very attractive, and matched the dark tinted glass with white pearl metallic paint. A flowing design gives the car an evocative feel, but one that is not loved by everybody. Push-button turn signals are attractive, as are fully automatic climate control options.

The 9-4X BioPower Concept, looking very near to production, has a four-cylinder 2.0-liter BioPower turbocharged engine attaining 300 horsepower and 295 ft-lb of torque. Running on the Saab XWD system, this cross wheel drive is meant to bring the highest level of enjoyment to the driver.

Both vehicles make their appearance at the Geneva Motor Show beginning on Tuesday 4 March.