To normal folks who aren't really into racing or car collection, homologation is a pretty silly word, and actually, it makes enthusiasts giggle, too. From the Greek "to agree," homologation is the granting of official approval and is approximately synonymous with "accreditation." As it pertains to motor sports, it is the requirement needed to put a car on the track for competition. Back when there were still stock classes in racing, governing bodies like NASCAR and NHRA made manufacturers sell a certain number of cars to the public to qualify them for racing.Homologation gave Joe and Jane Schmo access to the killer rides that their favorite drivers were taking checkered flags in and also put a lot more horsepower on the streets. Thanks to homologation, ordinary people got behind the wheels of iconic cars like the Pontiac Trans Am, Mustang Boss 429, or Plymouth AAR 'Cuda, and it is the reason why the 426 Street Hemi was even a thing.Homologated cars are often produced in small numbers and are highly collectible, but Dodge went super-small-batch and accidentally created one of the rarest factory Mopar muscle cars ever while trying to achieve NASCAR dominance in the '60s. Second-Gen Charger Struggles In NASCAR Mecum The Plymouth Belvedere with the 426 Street Hemi and Richard Petty in the driver's seat was an unstoppable force in NASCAR, so when Dodge debuted their new Charger in 1966, they thought they had something to compete with their cousin company. Unfortunately, the body design created tremendous lift at high speeds, and it was likened to driving on glass.When Dodge designed their second-gen Charger, introduced in 1968, they gave it a much more aerodynamic style, in hopes of knocking out Plymouth as well as the other manufacturers. Once again, there were some flaws that kept the Charger from being a track monster, but this time, it was generating too much drag. The recessed rear window created a low-pressure turbulent pocket, vortices built up around the C-pillars, and air would pile up in the inset grille, which made top speeds impossible, but also incredibly difficult to steer at 170+ mph. Enter The 1969 Dodge Charger 500 Mecum Dodge wasn't quite ready to throw in the towel yet and was determined to make the Charger a NASCAR powerhouse, employing the philosophy of "minimal changes, maximum speed." Their efforts resulted in the 1969 Charger 500, which was the first car they designed using wind tunnel testing data. Basically, they flushed the recessed glass in the back and on the sides, while pulling the grille out so it was so deep in the nose.This made the Charger 500 a lot more similar to the Coronet, and maybe they should have just been running that car instead, since it was nearly identical to the Belvedere that was already kicking ass in NASCAR. In any case, the new design of the 500 did get rid of most of the drag that was keeping the Charger out of the winner's circle. Homologated With High Hopes MecumContrary to popular belief, the Charger 500 was not named for the number of miles it takes to win Daytona, but rather the standard homologation number NASCAR required to compete in it. Despite the name, Dodge built far fewer Charger 500s and was still somehow allowed on the track with it. Only 392 cars were produced, but NASCAR let it compete, most likely because it was essentially still just a second-gen Charger, which sold a ton. The Charger 500s were standard Chargers that were converted on the assembly line, so perhaps NASCAR didn't consider it a different vehicle. Whatever the case, Dodge hit the track for the '69 season with fingers crossed. The '69 Charger 500 Is A Collector Super Star MecumFord and GM cranked out literally millions of muscle cars during the classic era, which is why only the truly special examples, like a Boss 429 or Chevelle SS 454 LS6, are big-money cars now. Dodge and Plymouth, on the other hand, sold in decent numbers, but much less than their competitors, and their rides were arguably cooler, plus definitely faster, so they are far more collectible.The extreme rarity of the 1969 Charger 500 puts it into a completely different category of collectibility, making it one of the most sought-after of the Golden Age. Hagerty sets the Concours condition for a Charger 500 equipped with a 440ci V8 at $152,000 and the 426 Street Hemi version at an astounding $287,000. That price is actually a little light, as that green 500, chilling in the snow pictured above, sold for a record-breaking $375,500 at Mecum Glendale 2025. While not quite the million-dollar+ prices that '69 Daytonas sell for, that's still a lot of scratch for a rare classic car. Charger 500 Plus 426 Hemi Equals 13.48 ETs Mecum Auctions The thing that truly makes the Charger 500 special is its 426ci V8, which is the greatest classic-era muscle car engine. While officially rated at 425 horsepower and 490 pound-feet of torque, the 426 Street Hemi was likely much more powerful, possibly in the 500 pony range. With a dual-quad carburetor setup, this engine was made to gobble up the gas and turn it into street ferocity. A Hot Rod road test of the 500, paired with a four-speed manual transmission, netted a 5.1-second 0-60 time and an impressive 13.48-second quarter-mile time, making it one of the quickest accelerating factory cars of the decade. Hemis are Unicorn Cars Mecum As with all classic Mopars, the Hemi-equipped ones are the rarest, and therefore the most collectible. 426 Street Hemi cars seem ubiquitous, but in reality, just about 10,000 were produced between 1966 and 1971, which is not a lot by any stretch of the imagination. With the 1969 Charger 500, we already mentioned that Dodge only cranked out 392 of them, but the inequitable distribution of engine and transmission options is where the unicorn cars are found.Just 67 426 Hemi cars were made, and of those, a mere 27 were paired with the four-speed manual transmission, which is bordering on Holy Grail car territory. There is a 100 percent chance that not all 27 of those 500s still exist today, and estimates based on registries, as well as auction appearances, put the number of survivors at between 12 and 18 cars. Being such a rare Mopar collectible, the 500 may be undervalued, and there might even be a million-dollar sale in its future. Legacy Of The Rarest Mopar Muscle Car Mecum Because it failed to close the gap to Ford’s aero advantage in NASCAR, the '69 Charger 500 has been unfairly slapped with a lovable loser reputation. While certainly not a great race car, it was one hell of a street machine, and that's all that really matters now. Had Richard Petty been able to crush the competition in a 500, Dodge would have produced more of them due to the old adage of "win on Sunday, sell on Monday," and it would be a fairly common car.Instead, due to its lack of success, Dodge pulled the plug on it and inadvertently created one of the rarest factory homologation special Mopar muscle car. Also, the 500's shortcomings led directly to the creation of the Daytona and Superbird aerocars, which cemented Mopar as the epitome of American muscle in the '60s. In a bizarre twist that M. Night Shyamalan wishes he could come up with, the Charger 500's status as a loser ultimately made it a winner. The Charger 500 Still Can't Beat Ford MecumGoing back to the NASCAR rivalry, despite the improvements, the Charger 500 still couldn't beat Ford or Mercury, and it had little to do with power, as its 426ci Hemi V8 was the ultimate race engine. Introduced in 1964, the 426 Hemi proved so competitive that NASCAR ruled it ineligible for the 1965 season due to Chrysler not producing a sufficient number of street-legal versions, forcing the company to homologate the engine for public sale. As a result, the Hemi was made available in all Dodge and Plymouth intermediate cars, which became the baddest rides of the Golden Age of American Muscle, leaving Mustangs in the dust.The real problem with the Charger 500 was that it was still too blunt and couldn't cut through the air like a Torino or Cyclone. Ford had invested early on with wind tunnel technology and designed cars that were far more aerodynamic. In a drag race, the Charger 500 would smoke just about anything, but on the NASCAR circuit, it was just a drag. Bring On The Charger Daytona Mecum In a weird kind of way, the failings of the Charger 500 were a blessing in disguise because it led to the greatest and most ridiculous set of wheels in the stock car era. Learning from the disastrous lift of the first-gen Charger and the tremendous drag of the second-gen, Dodge addressed these issues in the most beautifully extreme way, with the 1969 Charger Daytona aerocar.With an 18-inch nosecone that sliced through the wind like a hot knife through butter and a 23-inch rear wing that not only generated downforce but also stabilized the car at high speeds, the Charger Daytona was an instant champion on the track and the first car to top 200 MPH. It racked up multiple wins shortly after its introduction late in '69, and Bobby Isaac won the 1970 NASCAR Championship behind the wheel of a Daytona. Just as cool, Dodge sold 503 of these wondercars to the public, making for some truly wild red light challenges. Plymouth Gets a Superbird and a Less-Than-Super Ban Mecum Richard Petty had actually jumped ship and was driving Fords, but the sheer awesomeness of the Daytona had him wanting to come back to Mopar. He really wanted a Charger Daytona, but instead, Plymouth built him the Road Runner-based Superbird aerocar. Very similar to the Daytona, the Superbird had the crazy nosecone and wild flying rear wing, but more importantly, was every bit as dominant in NASCAR.For the 1970 season, most races were populated nearly entirely by Daytonas and Superbirds, as well as Ford's Talledega and Mercury's Spoiler II aerocars. This free-for-all didn't last long as NASCAR effectively banned aerocars heading into 1971, but it really was an amazing time for stock car racing. On the homologation side of things, Plymouth made 1,935 Super Birds for the public, but as incredible as it sounds, they weren't very popular, and some of them sat on dealer lots for years.Sources: Dodge, Hagerty, Mecum