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Using a 578-horsepower 4.4-liter bi-turbo V8 engine producing 531 ft-lb of torque, the new M5 is expected to reach 100 km/h in 4.4 seconds. That time is roughly 0.3 seconds faster than the current E60 M5 model.
The new M5 could feature an offshoot of the kinetic energy recovery system developed by BMW's F1 team. This, in part, will help improve fuel efficiency by 30% to 24 mpg.
BMW is expected to introduce the 2011 BMW M5 by the end of the year, putting the car on the market in spring 2011. Reports place an M5 concept at the Geneva Motor Show in March.