@ub1ub2media: Hundreds of cars parked on the grass verge beside a busy dual-carriageway in hounslow just to witness this marvel. As it took off, the crowd would have been rewarded with a breathtaking scene, followed by a sudden swirl of wind vortices. Car alarms went off, and you would've heard the forward landing gear doors closing as the Concorde passed overhead. What a moment it would have been watching this in person #UB1UB2 #London #Heathrow