In a few short weeks, the BMW Vision EfficientDynamics Concept will join the production-ready BMW ActiveHybrid X6 and BMW ActiveHybrid 7 at the 2009 Frankfurt Motor Show for the inaugural debut of BMW’s new ActiveHybrid technology. Initially conceived as an electric plug-in hybrid and designed in part by Bimmer’s famed Motorsports division, the 2+2 Vision EfficientDynamics combines the use of a 1.5L turbodiesel, two electric motors, and a lithium-polymer battery pack. The set-up itself is not entirely unlike similar plug-in hybrids already in various stages of development, but the Vision EfficientDynamics immediately distinguishes itself from the pack by flexing some serious specs.
Alone, the mid-mounted 3-cylinder 1.5L turbodiesel puts out a modest 163 hp and 214 lb-ft of torque, all of which is delivered to the rear axle via BMW’s new 6-speed double-clutch transmission (DCT). Located between the diesel and the DCT is the first of two compact electric motors, capable of cranking out a maximum of 51 horsepower and 214 lb-ft of torque, that utilizes a regenerative braking system to generate and feed electric power to the lithium-polymer battery. The second hybrid synchronous motor is located on the front axle and offers a continuous output of 80 horsepower and peak torque of 162 lb-ft. Extra power of 112 horsepower is available for a period of up to 30 seconds and, for a 10-second “burst,” the electric motor is able to develop 139 horsepower. The power is transmitted through a 2-stage, single-speed reduction gearbox. With all sources combined, the Vision EfficientDynamics output is boosted to 356 hp and 590 lb-ft of torque, making it one of the greenest white-knuckle experiences by far.
Using a standard EU 220V outlet (220 V, 16 Amps), the battery cells can be fully recharged in just 2.5 hours – which can be shaved down to a mere 44 minutes if a 380V outlet used. At full charge, the Vision EfficientDynamics is capable of traveling up to 31 miles on electric power alone. When combined with the combustion engine the range is increased to a staggering 431 miles while only consuming an estimated 3.76 liters/100 kilometers (62.6 mpg). Although the figures are still subject to official approval, BMW also claims the Vision EfficientDynamics boasts a CO2 emission rating of 99 grams per kilometer, or 50 grams a kilometer when driving in the all-electric mode.
Thanks to the engineering prowess of the performance-hungry M Sport engineers, the Vision EfficientDynamics can hold its own not just at the pump, but on the track too. Using a minimalist, aerodynamic design, the Vision EfficientDynamics is purportedly capable of sprinting from 0-60mph in just 4.8 seconds, maxing out at an electronically-limited top speed of 155 mph. Measuring 181.1″ in length, 74.8″ in width and 48.8″ in height, the drag coefficient is an austere 0.22 and despite its track-bred features, the interior is supposedly spacious enough to comfortably accommodate 4 adults.
If you aren’t loaded enough to check out the BMW Vision EfficientDynamics for yourself at Frankfurt, don’t worry, we aren’t either. We are, however, connected enough to have exclusive access to live motor show coverage, so check back in a few weeks for the official updates.