An efficient airflow is vital for low fuel consumption under everyday conditions. With a cd value of 0.23, the CLA sets a new record – both within the Mercedes-Benz model range and across all standard-production vehicles. At 0.51 m2, the drag area, vital for airflow resistance, is a top value. With the CLA 180 BlueEFFICIENCY Edition, this best mark is bettered yet again. This time, the cd value is 0.22, while, in terms of drag area, at just 0.49 m², the four-door coupé breaks through a magic threshold.