BMW's 5 Series range is about to expand with the addition of a hybrid model, the ActiveHybrid 5. Augmenting its excellent turbocharged, 300-hp, 3.0-liter, six-cylinder engine is an electric motor powered by lithium-ion batteries, bringing the horsepower total to 335 and boosting torque by 155 Ib-ft to 455. The car can run on electric power up to 37 mph with a maximum range of 2.5 miles. BMW claims this extra locomotive force can boost acceleration as well, quoting a 0-to-60 mph time of 5.7.
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