“I anticipate,” says Dr. Hackenberg, “that we will be able to go into production in February 2010. Meeting this schedule will be extremely demanding. Yet the engine and other systems of the Polo BlueMotion are already operating with such promising performance that we are on course to meet our goal.”
The “other systems” to which he refers include an automatic start-stop system and regenerative braking. These two technologies alone reduce fuel consumption of the 55 kW / 75hp three-cylinder direct-injection diesel by up to 0.2 liters per 100 kilometers.
But that is not all that is being done. On the Polo BlueMotion concept car, which weighs in at just 1,080 kilograms (2,380 lbs.), Volkswagen is calling upon an entire array of efficiency measures, including an aerodynamic package for the body that is lowered by 10 millimeters (including modified front end), an aerodynamically optimized underbody and low rolling resistance tires on 15-inch alloy wheels. Altogether, these modifications yield fuel savings totaling 0.8 liters. This has lowered CO2 emissions by about 20 percent.