BMW is to show revised 1 Series Coupe and Convertible models at the Detroit Motor Show which will go on sale in the spring of next year.
The revised cars have detail changes to bumpers and lights, but thye real differences are under the skin where a range of EfficientDynamics technologies have made both cars more efficient.
The greatest change to ES, SE and Sport models is that they now come fitted with an Aero Curtain – a feature that channels the airflow around the front of the car to reduce aerodynamic drag,
Derived from race technology, air is routed into two ducts in the front apron which then flows out of a narrow opening at high speed in the wheelarch. This jet of air effectively covers the side of the front wheels like a curtain and thus reduces turbulence.
As a result, CO2 emissions have been lowered throughout the range, with the 118d now rated at only 118g/km, while all 2.0-litre petrol versions have CO2 emissions of 155g/km or below.