Closed Curcuit: Thunder Alley, Grand Prix, and New Tracks, by Jeff and Carla Horger.How to play (video) by Top Shelf Boardgames.Mark Simonitch has asked for any of you who are willing to take a look and send him any edits you find at Thanks! Here's a near-final version of the Grand Prix Rules.Great Battles of the American Civil WarĬomponent Photos (see slideshow at left) by Scott Mansfield.