Autoblog and Yahoo may earn commission from links in this article.This 1968 Plymouth GTX Convertible is a proper slice of late-'60s American muscle, blending a 440ci Super Commando V8, three-speed auto, and open-air attitude. Only 506 of these drop-tops rolled out of the factory with the 440 V8 that year, and this one wears Burgundy Metallic paint, a black convertible top, and black vinyl inside. Right now, it's sitting at a $45,000 bid with a week left on the clock.1968 Plymouth GTX ConvertibleBring a TrailerWhat It's Worth Right NowClassic.com lists 30 similar 1968 Plymouth GTXs, with prices ranging from $54,169 to $78,801. This particular car is flagged as modified, showing 8,000 miles on the clock, though the real mileage is anyone's guess.AdvertisementAdvertisementBut let's add some context. This GTX isn't a time-capsule survivor – the Burgundy Metallic paint was resprayed by a previous owner, and there's some visible rust lurking underneath. The five-digit odometer reads 8,000 miles, but as always with classics, the true number is a bit of a mystery.1968 Plymouth GTX ConvertibleBring a TrailerGiven all that, I'd peg this car's value somewhere in the lower-to-middle end of the Classic.com range – think $55,000 to $70,000, assuming it runs as good as it looks and the paperwork checks out. The $45,000 starting bid is just the opening act; there's still plenty of time for things to get interesting.Condition and DetailsThis GTX still packs plenty of the good stuff that makes these cars cool: chrome 14-inch wheels with chunky 225/70 BFGoodrich Radial T/As, power steering, front disc brakes, rear drums, bucket seats up front, a center console, woodgrain trim, and a black power top for those sunny-day cruises.1968 Plymouth GTX ConvertibleBring a TrailerThe brakes have seen a full overhaul over the years, the shocks are fresh as of 2022, and the rear axle's been rebuilt. The TorqueFlite three-speed auto and torque converter got a rebuild in 2019, and the 440's carb was sorted in 2018. Seals, gaskets, belts, thermostat – you name it, it's probably been replaced.1968 Plymouth GTX ConvertibleBring a TrailerUnder the hood, the 440ci Super Commando V8 breathes through a four-barrel carb and was rated at a stout 375 horsepower and 480 lb-ft of torque from the factory. The dual exhaust now sports Flowmaster mufflers, so you get a bit of modern rumble without losing that classic big-block vibe. A quick look at the trim tag reveals some tasty factory options: front disc brakes, power assist, a 3.23:1 Sure Grip rear, bucket seats, center console, black convertible top, and of course, the 440ci V8 with a four-barrel carb.1968 Plymouth GTX ConvertibleBring a TrailerAdvertisementAdvertisementThe OfferSpecificationDetailMakePlymouthModelGTX ConvertibleYear1968Mileage8,000 miles (TMU)Engine440ci Super Commando V8Power375 horsepower, 480 lb-ftTransmissionThree-speed automaticDrive typeRear-wheel driveExterior colorBurgundy MetallicInterior colorBlack vinylCurrent bidUSD $45,000Classic.com compsUSD $54,169–$78,801Interested in this car? View the listing here.What Makes the GTX UniqueThe GTX always had a unique spot in Plymouth's muscle lineup, and the 1968 convertible nails the look of the second-gen body with the muscle of a 440ci V8. The 3.23:1 Sure Grip rear and TorqueFlite auto round out a spec that fits the big-block attitude perfectly.1968 Plymouth GTX ConvertibleBring a TrailerLet's be honest – the convertible body is the real showstopper. Just 506 of these 1968 GTX convertibles left the factory with the 440ci V8 and three-speed auto, so even with the mods and repaint, you're looking at genuine rarity.Final ThoughtsThis GTX is perfect for anyone chasing that big-block Mopar thrill without losing sleep over concours-level perfection. The $45,000 bid is just the starting line – current comps say there's plenty of room for this one to run.AdvertisementAdvertisementMy fair-value estimate of $55,000 to $70,000 takes into account the car's desirable 440ci convertible setup, plus the unknown mileage, mods, respray, and visible rust. Before getting serious, I'd want to eyeball the underside in person and comb through the service records. If it all checks out, this could be a fun addition to any Mopar collection.Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission.This story was originally published by Autoblog on Aug 14, 2026, where it first appeared in the Car Buying section. Add Autoblog as a Preferred Source by clicking here.
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