Before I delve into details, let me reiterate that this Trans Am shipped with the 455 SD V8 engine paired with an automatic transmission. The manual gearbox would have made it even rarer ...

In stock trim, the Super-Duty Trans Am turned a quarter-mile best of 13.54 at 104.29 mph, setting the bar for perceived showroom-stock SD-455 performance. With some basic modifications and ...

Nevertheless, when the SD-455 finally hit the street ... Pontiac showed a very unique black-and-gold Super Duty Trans Am. It was a 1973 model that served as an internal design concept for the ...

Now defunct, Pontiac was one of the most successful automotive brands on the North American continent back in the 1960s. During what was arguably the most exciting decade ever for American ...

The SD-455 debuted quietly in 1973 as an option on the Formula and Trans Am versions of the Firebird. (A few Grand Ams and GTOs with the souped-up powerplant found their way into the hands of ...

Introduced to the press during Pontiac’s annual model line preview in the summer of 1972, the Super Duty 455 ... Trans Am decals. All trim has been highly polished to a brilliant shine. Black ...

That happened at Mecum’s Indy 2024 sale in May when a Brewster Green 1973 Trans Am SD-455 four-speed sold for $260,000—the highwater mark for these in a public sale, that we know of.

The original Trans Am SD-455 was one of the final pony cars from Detroit to adhere to upbringings—a castaway in a world where regulations meant downsized engines and new emission controls.

Up for auction today at Bring a Trailer (which, like Car and Driver, is part of Hearst Autos) is a Brewster Green 1973 Pontiac Firebird Trans Am 455 with ... Firebird. An SD-455 was tested by ...

The workup also includes a ground effects package. True to the spirit of the muscle car, and the Trans Am SD-455 specifically, the Super Duty's real claim to fame is under its tattooed hood ...

Inside, the Trans Am 455 Super Duty features a Trans Am Super Duty shifter handle, restyled vintage climate vents, custom leather seating with "455" embroidered head rests and an "SD" embroidered ...