The so called "Jets chase UFO on M5" footage is all 3D computer graphics fraud!!!
The video has been obviously tampered with, using some form of 3D computer graphics software, models of similar trucks can be found on the web promoting 3D CAD applications. Software vendors like "the3dstudio" (the models are named "3D Model Volvo FH16 Truck" and "3D Model Mercedes Truck") and "3dshop" UK (the third truck, with P&O logo is named "P&O Trailer"). Try a Google search and you'll find all the three 3D models of the trucks, identical, with the same colours and details.
LearcoPignagnoli from YouTube made this video:
http://www.the3dstudio.com/product_details.aspx?id_product=82183
http://www.3dshop.org.uk/product.php?currency=EUR&cPath=31&products_id=216
http://www.3dcadbrowser.com/preview.aspx?ModelCode=435