What’s a Vintage Racing Geek to do in London?

I’m planning my first trip to London in May for one of the Specials reunion shows (YES!). Anyone have suggestions for spots in London that a vintage racing fan shouldn’t miss. So far I’ve only made plans to visit MotorBooks, but there has to be more shops, musuems, showrooms and the like that I should be taking in. If you have any suggestions, please share them in the comments.