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Saab will be unveiling it’s Saab 9-5 BioPower 100 Concept at Geneva next week. As you could guess, the 100 means it is optimised for E100 fuel – pure bioethanol. The result is a car powered by a high compression 2.0 litre turbocharged engine making 300hp and 400Nm of torque, pulling it from 0 to 100km/h in 6.6 seconds. E100 has a higher octane than most petrol, so a higher compression ratio despite turbocharging as well as more aggressive ignition is possible.