Mustang wagons have long been part of ponycar folklore. Some customs exist, but a factory-built first-generation Mustang shooting brake still appears to be mythology. Our friends at Hemmings have turned up some very nicely done cars that individuals have put together, a particularly fetching blue one has a very well thought out roofline and rear hatch. This whole bit of nonsense may have its genesis in a one-off wagon that Intermeccanica built for Barney Clarke and Robert Cumberford back in the '60s. It seems that you can do a lot with an early 'Stang and a Sawz-all if you're determined, and wagons are just the start of it.