As you might know, because of the focus that European countries are putting on CO2 emissions, most marques have created signature labels to certify when a certain vehicle is "clean" in the environmental sense. They basically take the least powerful version of the model, tweak the car aerodynamically, and install low-rolling resistance tires. Then they chose a fancy name.

Such is the case of Citroën with its Airdream label, which was seen in the C5 during the EVER Green Car Salon in Monaco last week. The C5 is a medium-sized sedan, about the size of a Mercedes E-Class, which is mated to PSA's well-known 1.6 HDi engine good for 110 HP. This allows the car to run 42 mpg US (5.6 l/100 km in mixed European cycle) and produce 149 g/km CO2. As most diesel PSA powertains, it accepts a mixture of up to 30 percent of biodiesel . Unfortunately, although it's a nice car, it can't compete with the original concept.

[Source: Leblogauto]

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