The ambush was at about six last night, moments after he left his office in north Woolwich. As he stepped away from the black BMW 328 CI SE, leaving the keys in the ignition, two members of the gang who had been lying in wait at the side of the road jumped in and started the engine. Their victim threw himself on the bonnet and clung on until two handbrake turns threw him off again and the robbers drove aw ay at high speed. A Ford Sierra was seen following the stolen car.