This is seems to be some raw footage from the assembly line of the Bugatti Veyron’s W16 quad turbo engine inside Volkswagen Aktiengesellschaft’s Salzgitter Engine Plant. This is where all of the VW Group’s W8’s, W12’s, W12 Twin Turbo’s and W16 Quad Turbo’s are made.

Here’s Bugatti’s promo video for the W16 if you want to find out more about it (embedding was disabled): http://youtu.be/t7gtmnOSmvU

Source: YouTube user katuwad