When people picture the rarest Mopars of the muscle car era, they tend to think of Hemi and Six-Barrel hardtops. But the convertibles were always scarce too. Drop-tops had fallen out of fashion by the late 1960s, and most models sold only a few hundred to a few thousand soft-top examples. Today they are even harder to find, because so many were tossed into junkyards and left to rot under the open sky, where a convertible takes far more punishment than a steel-roofed coupe.That is exactly what makes this Missouri farm field so haunting. It is not a junkyard — most of these cars were actually saved from one. As the story goes, the property owner pulled them out of scrapyards over the years and parked them at his house, until neighbors complained and he moved the whole collection out to his farm. They have been sitting in this field for roughly a decade, though many were parked long before that. Automotive archaeologist Ryan Brutt documented the field, and what he found is a row of eight convertibles built between 1967 and 1970 — rough, weathered, and in a few cases genuinely rare.Rare Mopar convertibles weathering in a Missouri field1969 Plymouth Road RunnerFirst in the row is a 1969 Plymouth Road Runner, now little more than a shell. Honestly, it is hard to see how this one gets restored, yet it remains one of the rarest Road Runners around. Plymouth moved more than 80,000 Road Runners that year, but only 1,890 left the factory as convertibles. If this is the common 383-cubic-inch automatic version, as seems likely, it is one of just 1,111 built. Plymouth made 769 manuals with that engine and a mere 10 with the Hemi.1969 Plymouth GTXNext door sits a 1969 GTX, the upscale sibling that came standard with the larger 440-cubic-inch V8. The GTX is the rarer car of the two: Plymouth built 15,602 of them in 1969, and only 701 were convertibles. This one most likely had the base engine, making it one of about 690 produced. You can still make out its original bronze paint, and it is absolutely worth saving.Two 1968 Satellites and a 1969 SatelliteBrutt then walks past a pair of 1968 Plymouth Satellite convertibles. They do not carry the cachet of a Road Runner or GTX, but they are rare in their own right. Plymouth built only 1,771 Satellite convertibles for 1968, most of them higher-trim Sport models, and the majority rolled out with small-block V8 power. Parked nearby is a 1969 Satellite convertible, one of 2,055 made that year.1970 Dodge ChallengerThe lone E-body in the field is a 1970 Dodge Challenger, the only first-year drop-top Challenger of the bunch. Dodge produced 3,884 Challenger convertibles for 1970, including 963 R/T models. This appears to be a base car, which would make it one of 2,921 built. What lurks under the hood is anyone's guess, but a 318-cubic-inch small-block V8 is the most likely suspect.A Pair of 1967 Dodge Coronets — Including a One-of-Seven R/TSaving the best for last, the field holds two 1967 Dodge Coronets. The first is a fairly ordinary base model, but the second is the crown jewel of the entire collection: a genuine Coronet R/T. Dodge reportedly built just 628 R/T convertibles in 1967, and this one wears an even rarer drivetrain — the four-barrel 440 V8 paired with a four-speed manual, a combination ordered on only seven cars.AdvertisementAdvertisementIt is rough, no question. Weeds have taken over the interior and the front end is damaged. But to the right enthusiast, it may not be a lost cause at all. A car this rare deserves a proper restoration and a return to the road.See the whole field walk-through in Ryan Brutt's video below — the rare Coronet R/T turns up around the 2:49 mark.Hopeless, or a Second Chance?The good news is that the owner plans to sort through the cars and sell them. Realistically, most will become parts donors, feeding other restorations. But a few — the GTX, the Challenger, and especially that one-of-seven Coronet R/T — could land with the right buyer and finally get the attention they have been waiting decades for. Which one would you pull out of the weeds first?Related reading on Finding Old Cars:AdvertisementAdvertisementThree Mopars in the Weeds: These Super Bees and a Coronet R/T Are Rough… But Hard to IgnoreThe Auto Archeologist's Rarest Barn Finds of the YearMopar City: A Time Capsule of Classic Mopar GreatsThis Rare 1968 Pontiac GTO Convertible 400 HO Is a Restoration Project Worth SavingRare 1965 Dodge Coronet 500 Convertible Sets a New Auction RecordHow to Inspect a Barn Find Before You Buy: A Step-by-Step Checklist