1968 Pontiac GTO Convertible
$70K
Pontiac Trans Am SD-455
1973 to 1974 · Coupe · Limited edition · 1,293 built
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Shifty Estimate
$51,700
Low confidence · $39K to $65K
- Median · all time
- $112,650
- Sales · all time
- 2
- Market cap
- $66.8M · 1,293 built
- Original MSRP
- $4,500Up 1049% since new
Enthusiast
Sold$51,700 · Mecum Auctions
The market
Every recorded 1973 Pontiac Trans Am SD-455 sale
No recorded sales yet. We track auctions and listings for this market continuously.
Every 1973 to 1978 Trans Am
Sold prices, all years · Aug 15, 2026
| SD-4551973 to 1974 | Bandit Edition (1977)1977 to 1978 | |
|---|---|---|
| Shifty Estimate | $51,700Low confidence | $27,000 |
| Sold median | Too few sales to call2 sales | $33,2006 sales |
| 12-month move | Too few sales to call | Too few sales to call |
| For sale | None | None |
Other Trans Am generations
- 1969
Specifications
- Engine
- Naturally Aspirated V8, 7.5L
- Power
- 310 hp
- Torque
- 390 lb-ft
- 0 to 60
- 5.4 s
- Top speed
- 132 mph
- Transmission
- Manual
- Drivetrain
- RWD
- Curb weight
- 1,650 lb
- Production
- 1,293 built
- Original MSRP
- $4,500
Common questions
How much does a Pontiac Trans Am SD-455 cost?
A 1973 Pontiac Trans Am SD-455 cost $4,500 new. Across every sale we have on file, 2 have sold publicly at a median of $112,650. The Shifty Estimate for a well-kept example is $51,700. Cars have changed hands anywhere from $38,775 to $64,625, depending on mileage, color, and history.
What is a 1973 Pontiac Trans Am SD-455 worth today?
The Shifty Estimate is $51,700. That sits below the $112,650 median of actual sales because the estimate weights the most recent results most heavily, and recent sales have come in under the longer-run median. We rate confidence low: 2 public sales in a year is not enough to be firm, and the honest range is wide. Treat it as a starting point, not a valuation.
Is a Pontiac Trans Am SD-455 a good investment?
It has appreciated 1049% against its $4,500 list price. Only 1,293 were built.
How many Pontiac Trans Am SD-455 have sold?
Shifty has 2 public sales of the Pontiac Trans Am SD-455 on file.
What has a Pontiac Trans Am SD-455 sold for at auction?
The 2 most recent public sales we have on file:
- $51,700White
- $173,600
About the 1973 Pontiac Trans Am SD-455
The Super Duty 455 Trans Am emerged as Detroit's defiant middle finger to emissions regulations and the insurance industry. While competitors downsized and detuned, Pontiac doubled down with a hand-built 455 cubic inch monster that delivered genuine supercar performance in the malaise era. With 310 honest horsepower and 390 lb-ft of torque, the SD-455 could hit 60 mph in 5.4 seconds when most 'performance' cars struggled to break 8 seconds. Only 1,293 were built across two years, making them rarer than most exotic supercars. The distinctive shaker hood and bold graphics announced serious intent. Today, these represent the absolute pinnacle of Trans Am collectibility, authentic examples command deep six-figure sums as collectors recognize them as the last true muscle cars before the dark ages truly began.
More Pontiac in the market
Sales and listings
Showing 2 of 2 on file
