The 1960s will go down in history as one of the greatest decades for the auto industry. Stateside, the '60s marked the beginning and height of the Muscle Cars craze, and the horsepower wars that raged on throughout the decade birthed legends that gearheads still rave about today. Across the pond, European automakers took the sports car formula to new heights, leading to the world's first supercar — the Lamborghini Miura.Having birthed such a staggering number of cultural icons, it's no surprise that some of the most expensive collector cars today were built in the '60s. We're talking Ferrari 250 GTOs and Ford GT40s fetching tens of millions of dollars at auctions, Hemi-powered Mopars hammering away for seven figures, and E-Types becoming the crown jewels of private estates. However, while deep-pocketed collectors are fighting for the blue-chip legends, savvy enthusiasts are looking past the obvious poster cars and putting their money into machines that offer the same '60s soul without the six-figure barrier to entry. From overlooked golden-era muscle gems to high-revving Italian masterpieces, these are the 5 '60s Classic Cars that collectors are quietly snapping up before the rest of the market catches on. 1964–1966 Ford Thunderbird: Jet-Age Luxury Without the Continental Price Tag Estimated Value: $32,900Via Mecum AuctionsThe Thunderbird debuted in 1955 as a two-door, two-seat American sports car competing directly with the Chevrolet Corvette, but by the time the fourth generation kicked off in 1964, it had grown in size, gained two more seats in the rear, and was one of the leaders of the personal luxury segment that it helped create. The fourth-gen Thunderbird, affectionately known as the "Flair Bird," is perfect for those looking for the charm of mid-century American luxury.Via Mecum AuctionsIf you're looking for speed, you won't find it in this Thunderbird. Even when equipped with the top-of-the-range 345-horsepower 428 cubic-inch V8, it still takes about 9 seconds to reach 60 mph, which is slow even by 1960s standards. What you're paying for is unmistakable jet-age sophistication. From its wraparound rear lounge and "Swing-Away" steering wheel to those mesmerizing sequential rear turn signals, the Flair Bird was always more about the arrival than the race.For years, these heavy hitters were dismissed by muscle car purists as too soft for the strip. The market is finally pivoting, but with the average price for one in good condition still in the $30,000 to $40,000 range for the more desirable convertibles, the T-Bird is the ultimate blue-collar alternative to a vintage Continental. 1968 AMC AMX Estimated Value: $35,500 Mecum1968 was a pivotal year for AMC as a brand. Following a record loss in 1967, the Kenosha-based marque finally accepted that it needed some performance credentials to survive, and it decided to attack the performance market head-on. The result? A stubby two-seat halo car known as the AMX.MecumThe AMX was an unusual sports car and pony car mashup built on a shortened Javelin chassis, and since it was the only other two-door, two-seat American performance car, it had the Chevrolet Corvette in its sights. The AMX only had V8 engine options, with the top-of-the-range option being a 390 ci V8 with 315 hp on tap. While it wasn't as powerful as some of the Detroit rivals it competed against, the AMX's proportions gave it a great power-to-weight ratio, allowing it to beat entry-level Corvettes that cost over $1,000 more and record quarter-mile passes in the mid-14-second range.The AMX was a certified giant-killer and is a relatively rare gem with just 19,134 units produced in its three-year run, but prices have remained fairly grounded, especially when compared to more famous Detroit rivals. The average price for an AMX in good condition is still below $50,000, which many believe is a bargain. But while American manufacturers were focused on raw power, European designers were crafting something entirely different — cars that proved beauty and reliability could coexist. 1961–1963 Volvo P1800 Estimated Value: $37,544 Via Mecum AuctionsVolvo is most famous for making family cars that prioritize safety, longevity, and boxy practicality, but the P1800 is the gorgeous outlier that changed the narrative for a moment in the 1960s. The P1800's story can be traced all the way back to 1953, when Volvo co-founder Assar Gabrielsson reportedly visited a Chevrolet production plant and witnessed the first Corvettes rolling off the production line. Gabrielsson was so impressed that Volvo started working on a similar sports car targeting the lucrative U.S. market. Several years later, Volvo introduced the P1800, proving that the Swedes could build one of the most beautiful sports cars if they wanted to.Via Mecum AuctionsThe P1800 looked ready to dominate, but Volvo's decision to equip it with an underpowered four-pot put it at a disadvantage compared to the thumping V8s and high-strung V12s of its rivals. However, the P1800 more than made up for its lack of power with bulletproof reliability, as it holds the world record for the highest mileage ever recorded in a single, non-commercial car after clocking over 3.25 million miles.That perceived weakness has also kept prices depressed for decades and now allows savvy collectors to snag a stunning 1960s silhouette for a fraction of the exotic car tax. The Volvo 1800 family averages around the mid-$30,000s overall, while 1800S and special cars can be much higher. 1965–1969 Chevrolet Impala SS Estimated Value: $38,800 Via Mecum AuctionsAs popular as the fourth-generation Impala was when it debuted in 1965, it was never a go-to pick for gearheads seeking performance. As a full-size model, the Impala was known more as a grocery getter than a street brawler, even when wearing the vaunted SS badge. The most powerful regular production Impala SS of the 1960s had a 390-hp 427 cubic-inch "L36" V8, enough to give it a 15.8-second quarter-mile but not enough to threaten the top muscle cars of the day.Via Mecum AuctionsThe Impala SS spent years playing second fiddle to the smaller, rowdier Chevelle, but the smart money is finally shifting toward these full-size bruisers. While a Chevelle SS might edge it out in a stoplight drag thanks to lighter curb weight, the Impala SS offers a smoother, more sophisticated cruise and a cavernous interior that makes it perfect for long-distance cruising.The average price for an L36-powered 1969 Impala SS is $38,800, which makes it a great alternative to the 1969 Chevelle SS 396, which costs more even when equipped with the entry-level 325-hp L35 V8. The Impala SS offers the 427's raw, mechanical violence paired with a wheelbase that irons out the road, proving that sometimes bigger really is better. 1969 Alfa Romeo GTV Estimated Value: $47,300 Via Bring a TrailerSay what you will about Alfa Romeo's reliability, but one thing that everyone respects about the Italian brand is its ability to churn out cars that ooze curb appeal and driver engagement. The 1969 Alfa Romeo 1750 GTV is widely considered the sweet spot of Alfa Romeo's 105 Series coupes. While its predecessor, the "Stepnose" Giulia, is prized for its rarity, the 1750 GTV refined the formula into a world-class grand tourer, blending a gorgeous design penned by the legendary Giorgetto Giugiaro with a fuel-injected all-aluminum twin-cam engine that delivers a rev-happy 132 hp.Via Bring a TrailerThat doesn't sound like much by modern standards, but combined with a featherweight curb weight of just under 2,300 lbs, the GTV offers a go-kart-like feel that modern sports cars struggle to match. The GTV also offers you the ability to row your own gears via a five-speed stick shift and ultra-thin A-pillars that provide a panoramic view, making it the perfect candidate for a relaxing coastal cruise.Though the 1969 GTV is more cruiser than bruiser, it still offers that 1960s Italian charm that collectors crave, which is why prices are trending upwards. One in good condition is currently valued at $47,300, which, incidentally, is almost exactly what the original $5,200 MSRP amounts to after inflation.Sources: Hagerty, Classic.com, Mecum Auctions