In celebration of McLaren’s 50th birthday, here’s a fascinating look inside their futuristic supercar factory. This F1 company may have started in a small suburban office, but they now employ 2,000 workers that are currently finishing up the first batch of $1-million-plus P1 supercars (above) for delivery next year. Continue reading for more pictures and a video.

It includes a production line where cars are built by hand, a paint shop and a rolling road where cars are tested before going out on a test drive ahead of being shipped off to the customer. The internal space is large enough to accommodate three jumbo jets, but the huge building in Woking is largely hidden from view and is carbon neutral.

The production center has the capacity to produce 4,500 cars a year, a number that will be realized in 2015 when the company’s model portfolio expands to three separate models – the McLaren 12C, forthcoming P1 and a mystery unnamed model.