As the mid ’70s approached, the golden era of American muscle cars was starting to wind down. The horsepower wars were waning, emissions regulations were starting to creep in, and rising performance car insurance costs meant Stateside manufacturers had their hand forced into pivoting away from their well-proven V8 recipes.
However, there were still a few interesting years before the notorious malaise era kicked in when muscle car styling and V8 engines were still on the cards, and the 1973 Dodge Challenger you see here is perhaps the perfect representation of it.
Launched in late 1969 for the 1970 model year, the E-body Challenger was introduced as a slightly larger and more premium version of the Plymouth Barracuda. Virtually every engine from a base-spec straight six to the legendary 426 Hemi was available over the years.
Teamed with a more luxurious interior, it was clearly in competition with the Mercury Cougar and Pontiac Firebird at the upper end of the ‘pony car’ segment that the Ford Mustang pioneered.
It was in 1972 that the first signs of compromise started to kick in for the Challenger. In addition to a redesigned front and rear end, horsepower ratings were cut – partially because its engine options were tuned with a lower compression ratio for running on unleaded petrol, and partially to reflect the more accurate SAE calculation system.
The following year saw the addition of mandatory ‘5mph’ rubber bumpers, while the base 225ci (3.7-litre) ‘slant-six’ engine was dropped. Thus, only 318ci (5.2-litre) and 340ci (5.7-litre) V8 engines were offered for 1973, the latter replaced by a 360ci (5.9-litre) unit with a four-barrel carburettor for 1974 models.
All that means that while this 1973 model – which features in RR Auctions’ April 2026 sale – mightn’t be as raw as an early car, that’s far from a bad thing. Instead, it’s more civilised, still packs a big V8, and of course looks every bit the part in this resplendent shade of red.
Inside, it’s easy to see how the Challenger was positioned as a more premium offering at the time, with its roomy cabin extensively appointed in black vinyl upholstery with wood-grain trim.
Under the bonnet, this car has had its original 318ci engine swapped out for the larger 360ci V8 from a ’74 model which is good for around 245hp (183kW). Backed by a three-speed automatic with the “Slap Stik” T-bar shifter, it’s the perfect recipe for a classic cruiser.

With this car having been given a proper refresh of its suspension and braking systems, including a complete fresh set of bushes and new brake discs and lines, it feels as good as it left the factory, serving as a reminder of just how much fun muscle cars can genuinely be.
It’s never going to match a European sports car out of the water when it comes to dynamics, but that’s simply not the point of a car like this. When you want to cruise along in comfort, there’s little else that suits a long straight country road or beachside boulevard cruise quite like it.
The ride quality has the suppleness of a luxury car, yet it still feels connected to the road. Its power-assisted steering may be light and relaxed off-centre, but there’s a reasonable amount of feel when you do start to turn it into a corner and you can always tell which way those front wheels are pointing.
But plant your right foot into the carpet and it still lets out a bellow as the rear squats down and propels you forward, a grin-inducing side effect of its softer spring rates. Sure, the torque converter picks up a lot of the slack when you simply leave it in Drive, but this transmission ideally suits the blend of comfortable cruising and torquey performance.

Truly, the only thing that proved challenging when it came to the Challenger was how much my cheeks hurt from smiling ear-to-ear after my stint behind the wheel. It’s impossible to drive a car like this in a bad mood.
From where I was sitting, this car simply oozes appeal. With its immaculate mechanical condition serving as a reminder of how fun American muscle cars can actually be to drive, this is the right example to go for if you simply love the art of driving in all its shapes and forms.
As one of the last chances people had to get their hands on proper muscle cars before downsizing truly crept in, the story only makes it even more special in my eyes.
If you agree with the old adage that it’s “Mopar or No Car”, head to the RR Auctions website where you can place your bids on this one until the hammer falls on April 29.