1970 Plymouth ‘Cuda AAR: Muscle Car Of The Week

This 1970 Plymouth ‘Cuda AAR pairs Rally Red paint and a strobe stripe with the rare 340 Six-Barrel engine, a numbers-matching package, and a spot inside The Brothers Collection, one of the most selective private muscle car collections around. Built for a single year to homologate Trans Am racing, the AAR remains one of Mopar’s most respected small-block performers. V8TV goes hands-on for Muscle Car of the Week. Watch to see what makes this one so special.

The Brothers Collection has a reputation for only holding onto the sharpest example of anything it acquires, and this 1970 Plymouth ‘Cuda AAR is proof of exactly how high that bar is set. Rally Red paint, a strobe stripe that looks like it was designed to be seen in a rearview mirror, and an engine that most Mopar people only ever read about in magazines. Numbers-matching, fully documented, and built around one of the rarest engine options Plymouth ever offered in the AAR lineup. V8TV went hands-on with the car for Muscle Car of the Week, and there is a reason this particular ‘Cuda keeps coming up in conversations about the best surviving examples left.

What Made the AAR Different From a Standard ‘Cuda

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The 340 Six-Barrel: Small Block, Big Reputation

The AAR designation stood for All American Racers, and Plymouth built the package for one year only in 1970 specifically to satisfy homologation rules for Trans Am racing. That single-year production window alone makes surviving examples scarcer than a standard ‘Cuda, and the visual cues, side-exit exhaust, a fiberglass hood, and that unmistakable strobe stripe, were never just cosmetic. They signaled a car built with a racing program’s fingerprints all over it, not a showroom special dressed up to look fast.

1970: Mopar’s High Water Mark

The 340 Six-Barrel: Small Block, Big Reputation

Numbers-Matching and Why That Phrase Carries Weight

While plenty of Mopar muscle chased big numbers with 440s and Hemis, the AAR’s 340 cubic inch six-barrel small block carved out its own reputation for a different reason. It revved eagerly, kept weight off the nose for sharper handling, and delivered exactly the kind of high-strung performance a Trans Am homologation special needed. On paper it looks like the underdog next to Mopar’s bigger engines. In practice, it is one of the most respected small blocks Chrysler ever built.

Life Inside a World-Class Private Collection

1970: Mopar’s High Water Mark

The AAR arrived at almost exactly the moment Detroit’s muscle car era peaked, right before insurance surcharges and tightening emissions regulations began strangling horsepower across the industry within just a few model years. By 1971 and 1972, compression ratios were already dropping and factory power figures were shrinking across nearly every performance nameplate Detroit built. That timing means the AAR represents Mopar performance at its least compromised, built before manufacturers had to start designing around regulations rather than lap times, which is part of why enthusiasts treat 1970 specifically as such a significant model year, arguably the last one where a manufacturer could build exactly the car a racing program demanded without compromise.

Numbers-Matching and Why That Phrase Carries Weight

A fully documented, numbers-matching package means the engine, transmission, and other major components currently in the car are the same ones that left the factory together. For a model this rare, with a production run limited to a single year, that kind of paper trail is the difference between a nice tribute car and a genuine, six-figure collector piece. Finding one this well preserved with the story intact is not common.

Life Inside a World-Class Private Collection

Being one of the sharpest examples inside The Brothers Collection is its own kind of validation, since a collection built around only keeping the best forces every car in it to earn its place. Collections at this level routinely turn away cars that would headline most other private garages, which means simply being included says something before a single fact about the AAR’s own history even gets mentioned. For this particular ‘Cuda, that means standing out among some of the finest documented Mopars in private hands anywhere, a status that only deepens the car’s significance to collectors who understand exactly what a single-year homologation special like this represents.

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