The 1960s convertible market is having a quiet moment. At collector auctions across the country, a specific group of open-top classics is drawing serious attention. Not the obvious names, but the ones with real performance pedigree that haven't fully caught the mainstream eye yet. Part of what's driving this is simple demographics. According to Hagerty, a disproportionate 49 percent of certain muscle-era classics are currently owned by Baby Boomers. As that ownership changes hands over the coming years, more of these cars will enter the market, and prices will move with them.The six cars on this list share a common thread: genuine muscle car DNA, top-down driving appeal, and collector valuations that haven't yet caught up with what they actually are. These are the 1960s convertibles that knowledgeable enthusiasts are quietly stockpiling, before the rest of the market catches on. 1965 Buick Skylark Gran Sport Convertible Average Used Value: ~$20,000–$36,000 Bring a Trailer Of all the cars on this list, the Skylark Gran Sport Convertible is the sleeper. It's the one most collectors walk right past, and the one that quietly rewards the ones who stop. In 1965, Buick took its Skylark and turned it into something that can bite your head off. The Gran Sport was offered as a coupe, hardtop, or convertible, and packed the full-sized Wildcat's 325 horsepower, 401-cubic-inch V8 under the hood. By 1967, the Gran Sport had grown into its own standalone model—but it's these early Skylark-based cars that collectors are circling back to.Bring a Trailer Recent auction results suggest average sale price sits around $20,000-22,000, with the highest recorded sale hitting $36,300 in January 2026. The lowest recorded sale for a 1965 GS Convertible was $14,700 at auction in October 2024. Real entry-level territory for a genuine muscle-era convertible.There's a bonus for those who dig deeper. For the 1966 model year, Buick offered a dealer-installed, dual-quad intake setup for the 401 engine to further boost performance. Finding an original, documented dual-quad car today is increasingly difficult, making them among the most coveted early GS variants in collector circles. The Buick name simply doesn't carry the same emotional charge as Pontiac or Oldsmobile, and that is the opportunity. Prices lag the brand, not the machine. With low convertible production numbers and a two-year model run before the Gran Sport became its own line, scarcity is building. 1965 Ford Mustang Convertible 289 Average Used Value: ~$30,000–$55,000 Mecum Some cars define an era. The 1965 Mustang convertible is the car that launched the pony car era, and first-gen appeal only grows stronger with time. When it rolled out the door, a Mustang convertible cost just $2,557. The K-code high-performance 289 engine, introduced in mid-1964, produced 271 hp and came paired with a four-speed manual, quick steering, and a special handling package. Ford sold 680,989 Mustangs in 1965 alone. Of those, around 73,000 were convertibles. While more common than the highly sought-after fastbacks, drop-tops are still significantly harder to find compared to the massive sea of standard hardtops, which is exactly what drives collector interest today.Mecum Prices vary widely depending on spec. A smooth-running 289 example can be found for around $20,000, but well-optioned and restored cars push into the $55,000 range and beyond. K-code Hi-Perf versions command a clear premium over other versions of the 289. The K-code is the one to find. It features aluminum pistons, solid lifters, high-flow cylinder heads, a heavy-duty crank, and chrome valve covers. Mechanically and visually distinct from lesser 289 variants, these are the cars collectors are competing for.The good news for buyers new to the hobby: parts support is extensive, and the enthusiast community is enormous. The 1965 Mustang convertible is genuinely one of the most approachable first classics on this list. 1968 Oldsmobile 442 Convertible Average Used Value: ~$30,000–$45,000 MecumThe Oldsmobile 442 is the insider's pick for a genuine muscle car with real performance hardware. The 442 convertible is a compelling collector's item with a price tag that hasn't caught up yet. According to Hagerty, the average price of 1968–72 442s rose 19% over five years, with a median auction sale price of $39,600. That's still below the $44,600 median value for a second-generation 442 in good condition, and well above the $16,000 range of the garden-variety Cutlass it was based on.Mecum The 1968 442 came in three body styles, including the Convertible. Base power output was a 350 hp 400 V8, and total 1968 production reached 33,607 units, with 5,142 of those being Convertibles. The most desirable factory variants are the W-30 400 models, especially with a four-speed manual, which bring a premium over automatics at auction.Recent sales show just how wide the range can be. A 1968 442 sold at Barrett-Jackson Palm Beach in April 2026 for $29,150, while the highest recorded auction result for the model sits at $209,000. Condition and spec are what primarily dictate the value. 1967 Chevrolet Impala SS Convertible Average Used Value: ~$50,000–$75,000 MecumDon't let the Impala's reputation as a mass-market car fool you. The SS Convertible is a different animal. Genuinely rare, culturally loaded, and increasingly hard to find at an accessible price. Only 9,545 Chevy Impala Super Sport Convertibles were built in 1967. Despite the model's everyman image, the drop-top SS is anything but common.Inside, buyers got an all-vinyl interior, bucket seats, a console, a blackout grille, and SS badges. Engine choices ranged from a 275 hp 327 all the way to a 385-hp L36 427, with a 425-hp L72 427 available for buyers who wanted serious performance. Just 2,124 Super Sports left the factory with a 427 under the hood.Mecum Pricing reflects the Impala SS Convertible's broad appeal. The average auction result across all 1967 Impalas with manuals sits at $57,530, with highs reaching $132,000 and lows at $14,850, and automatics are valued 10 percent lower. The most recent sale in the 1967 Impala series was at Mecum Kissimmee in January 2026 for $68,200.The cultural story here is different from the rest of the list. The Impala SS Convertible carries weight in American street culture, West Coast custom scenes, and lowrider heritage, creating collector demand well beyond the traditional muscle car crowd. For weekend-driver collectors, there's another practical advantage. Parts availability is excellent thanks to high original production numbers, making the '67 Impala SS one of the most cost-effective classics to buy, restore, and actually drive. 1969 Pontiac GTO Convertible Average Used Value: ~$65,000–$90,000 Bring a TrailerMany view the 1964 Pontiac GTO as the pioneer of the muscle car. Sixty years later, the convertible version from 1969 remains one of the most coveted open-air performance cars of the decade. Values have been moving. According to the Hagerty Price Guide, all GTOs in good condition have appreciated 14 percent over the past five years, rising from $56,396 to $64,551. That trend is backed by real auction activity. Current Hagerty Marketplace listings range from the mid-$50,000s to $125,000 and above, depending on condition and spec.Scarcity drives the story. In 1969, just 7,328 GTO convertibles were built against 58,126 hardtops. Drop-tops were always the minority, and they're only getting harder to find.Bring a TrailerAt the top of the range are the Ram Air IV V8 cars. Only 59 GTO convertibles left the factory with that engine; 45 with a manual, 14 with an automatic. These are the trophy cars, and buyers know it. For most collectors, the standard 350-hp or 366-hp Ram Air III 400 V8 is plenty. The performance heritage is real and instantly recognizable to any serious muscle car enthusiast.One caution worth noting: the Judge package, introduced in 1969, adds significant collectibility, but fake Judges do exist. While the VIN plate's unique "242" prefix will instantly verify if the car is a real-deal GTO, it won't prove it left the factory with the Judge package. Genuine documentation, such as Pontiac Historic Services (PHS) paperwork, is essential before any purchase. 1965 Chevrolet Corvette C2 Convertible Average Used Value: ~$78,000–$120,000+ MecumThe second-generation Corvette debuted in 1963 with a race-inspired Sting Ray body and independent rear suspension—a first for the model. Four-wheel disc brakes arrived in 1965, followed by massive big-block engine options. Nearly 118,000 C2s were built across five model years, split between coupes and convertibles.The price range is the widest of any Corvette generation. According to Hagerty, C2 values start at $56,800 in fair condition, and around $78,000 for a well-maintained, base-spec 1965 327/300-hp convertible, stretching all the way to $2.2 million for a one-of-20 1967 L88.MecumThe long-term value picture is encouraging. C2 Corvettes originally sold for the equivalent of around $40,000 in today's money. The median excellent-condition value today is over $120,000. For L76 convertibles specifically, fair-condition values have climbed 47 percent since 2018 to $53,500. The floor is rising faster than the ceiling, which signals broad-based, healthy demand.There's a practical angle for convertible buyers, too. Corvette club support, a robust parts ecosystem, and consistent auction presence round out the case. Of all the cars on this list, the C2 convertible is the one most likely to hold its ground no matter what the broader market does.Sources: Hagerty, Classic, Barrett-Jackson