Vauxhall: New Corsa’s Aerodynamics Are ‘Best In Class’
Vauxhall has revealed that wind tunnel tests on its new fifth-generation Corsa will make it among the most aerodynamic in its class.
Designed to cut drag and save energy, the all-new Corsa’s design includes an active aero shutter, smooth underbody and rear roof spoiler to make the hatchback as clean through the air as possible.
With a reduction in frontal area of 2.13m2 versus the previous model, the new version achieves a drag coefficient of 0.29, which allows the car to expend less energy as it passes through the air, thereby reducing its emissions and fuel consumption.
In point of fact, Vauxhall engineers found that a cut in 10 per cent of drag resulted in a reduction of around two per cent in the New European Driving Cycle (NEDC), or up to five per cent when travelling at motorway speeds. The new generation of Corsa already complies with the future Euro 6d emissions standard.
Design factors that have helped bring about the improved results included covering the underbody of the engine compartment through to the rear axle with flat panelling to improve the airflow under the car, along with a rear spoiler to improve the car’s straight-line stability. The active shutter lowers drag and improves fuel efficiency by automatically closing or opening when cooling air is least needed. When closed, the shutter redirects air around the side of the car rather than through the less aero-efficient engine area.
The new generation model has also achieved notable weight loss compared to the last model, with the range starting at 980 kgs, which is up to 10% lighter than before.
The all-new Corsa arrives in UK showrooms in January.