Hornets and towers for BMW

The BMW Sauber car is getting more and more chunked with aerodynamic devices. Their state-of-the-art windtunnel allows intensive testing, and last week's Jerez test allowed the development of the new towers above the nose cone and hornets on the airbox, similar to McLaren. Both items as thought to straighten the airflow and therefore reduce drag or increase downforce further down the car.