The BMW Vision EfficientDynamics is a concept car that was unveiled by BMW in 2009. It is a hybrid sports car that combines a turbocharged 3-cylinder diesel engine with two electric motors. The car has a top speed of 155 mph and can accelerate from 0-60 mph in 4.8 seconds. The car has a range of up to 31 miles on electric power alone and can be recharged from a standard household outlet. The car also features a lightweight aluminum chassis and a drag coefficient of 0.22, making it one of the most aerodynamic cars on the market. The BMW Vision EfficientDynamics is a perfect example of how modern technology can be used to create a powerful and efficient car.