Top Gear’s mystery driver The Stig can’t hold it in anymore and wants to write an autobiography to spill it all out. But his employers BBC are going all out to ensure that their ace faceless driver remains well, faceless.

BBC’s lawyers claim that Mr. Stig is subject to a confidentiality deal and unmasking himself would remove the mystery and subsequent enjoyment of the motoring programme, one of the most highly rated on the channel. An autobiography will breach “agreed contractual and confidentiality obligations relating to the programme” according to BBC.

Looking like an Imperial Stormtrooper in his all white race suit, helmet and shoes, the reason why The Stig is so famous is because he’s a mystery. He’s the expert tester of the show, and trains the show’s celebrity guests in the popular “Star in a Reasonably Priced Car” segment. Perhaps he wants to cash in on his status, like how fellow Top Gear hosts earn money from books and other TV work.

While a few racing drivers have been linked to the role, including former F1 champs Michael Schumacher and Damon Hill, only a handful of Top Gear execs and presenters Jeremy Clarkson, Richard Hammond and James May are said to know who The Stig really is.

The current Stig is supposed to be the show’s second after the original Perry McCarthy was dropped after his cover was blown.