From the MB press release:
Quote:
(Wind) resistance is futile - a new record Cd figure
With a Cd figure of 0.23, the CLA sets a new benchmark among not only Mercedes models, but also all series-production vehicles. The frontal surface area, Cd x A - which is crucial to aerodynamic resistance – also leads the field at 5.49 sq. ft.
The good air flow characteristics, which have a major impact on fuel consumption under everyday driving conditions, are the result of extensive aerodynamic optimization. These include
- a low A-pillar shoulder with adapted A-pillar geometry,
- aerodynamically optimized exterior mirrors,
- low-drag wheel trims
- and serrated wheel spoilers on the front and rear wheel arches.
- Extensive underbody cladding,
- additional cladding at the center of the rear axle,
- an aerodynamically optimized muffler
- and a diffuser improve the flow of air beneath the underbody.
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