Millbrook Proving Grounds played host to a Lamborghini UK track event featuring both the Gallardo and Aventador.Lamborghini UK recently held a track event at the Millbrook Proving Grounds in England. The event featured several Gallardos, a few Spyders and even an orange Aventador. Photographers NWVT were called to shoot some footage of the event and the results of which turned out brilliantly.For those who aren't familiar with the Proving Grounds, it is a private track built for vehicle testing in Bedfordshire, England.It features three different types of tracks used for testing and the filming of occasional TV and movie spots, including a scene on Top Gear and for the Aston Martin crash towards the end of the James Bond film "Casino Royale". The photographers call it an "Automotive Area 51," as minders are present for the duration of a visit to the area, ensuring that you only film what you were brought there to film and to make sure you don't go over your allotted visiting time.Check out the gallery below of Lamborghini UK's event at the Millbrook Proving Grounds. Keep in mind that the photographers shot all these amazing scenes in only one hour.