One of the great challenges facing Volkswagen is how it develops the Bentley brand when its long association with Rolls Royce ends - RR passes to BMW at the end of this year. New product and entering new segments is most definitely on the agenda. But care needs to be taken to avoid diluting the exclusive brand with higher volume. The Bentley GT coupe design ethos certainly appears to embody traditional Bentley values. In a few months time, we'll see for ourselves.