Some say he's made from injection-moulded plastic, and that his legs are completely hollow. All we know is he's... the Stig's Lego cousin.
And you can get your very own (shackled to a keyring for your own safety) for £2.49 with a code secreted in this month's Top Gear magazine.
But who is this mysterious addition to the Stig family? We thought we'd tell you with this nifty video, as narrated by Sir Jeremy of Clarkson....
Now watch, then tell us what you'll be doing with your Lego Stig