9-X BioHybrid Saab Concept CarThe Saab 9-X BioHybrid concept is a vivid vision of what a future compact car from Saab could look like.Exploring design themes from Saab's award-winning Aero X and earlier 9X concepts, the 9-X BioHybrid also demonstrates the potential for ultra-efficient power from a 200 hp (147 kW), 1.4-liter BioPower turbo engine backed by GM's next-generation Hybrid system.