High Quality Content by WIKIPEDIA articles! Saab Aero-X is a concept car by Saab unveiled at the 2006 Salon International de l`Auto. It is powered by a 2.8 L twin-turbocharged V6 running on pure ethanol that produces 300 kW (400 hp). 0 to 100 km/h (62 mph) is predicted to be 4.9 s and top speed is limited to 250 km/h (155 mph). It has a 7-speed manual transmission controlled by paddles on the steering wheel.