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The Saab 9-X Biohybrid concept car was developed by Saab in 2008 and first shown on the Geneva Motor Show. It is based on the GM Delta platform and is thought to give an idea of the upcoming Saab 9-1X.
It has keyless entry and small cameras instead of rear-view mirrors. On the roof there is a solar panel, like in the Saab EV-1, for charging the battery, both when driving and when parked. The headlights are automatic. A front-mounted camera detects if you meet another car.
The front of the car follows the design of the Saab Aero-X while the rear has a cut-off look similar to the Saab 9-X. It is powered by a direct injected, E85 flex-fuel capable turbocharged inline four-cylinder engine of 1.4 liters giving 200 hp (150 kW) at 5000 rpm and 280 N·m (210 ft·lbf) at 1750-5000 rpm. Connected to the engine by a belt is GM's BAS+ hybrid system which can provide a boost up to 19 hp. The engine is connected to a manual six-speed gearbox with automatic clutch. 0-100 km/h is achieved in 7.9 seconds and it has a top speed of 216 km/h (134 mph). It has four seats although the headroom in the rear is somewhat restricted. As the name suggests, it runs both regular gasoline and E85. The fuel consumption (running on E85) is 6.41 litres per 100 kilometres (44.1 mpg‑imp; 36.7 mpg‑US) and the tank-to-wheel CO2 emissions are 105 g/km.
If you drive faster than 70 km/h (43 mph) the rear spoiler is extended and an underbody diffuser is deployed from the bottom of the rear bumper. When braking at speeds above 100 km/h (62 mph), the spoiler acts like an air brake and also is used to increase the downforce of the car.