Pontiac Bonneville

1977 to 1986 · Sedan

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Shifty Estimate

$4,100

Low confidence · $3K to $5K

Median · all time: $8,600
Sales · all time: 7

Sold$4,077 · Bring a Trailer · Sep 2026

The market

Every recorded 1977 Pontiac Bonneville sale, by date and price

Sep 2026 · Bring a Trailer

$4,077 · 86,000 mi · Gold

See this car

Sold

6 salesmedian $8.6kupdated Sep 2026

Other Bonneville generations

1957 to 1958
1959 to 1960
1961 to 1964
1965 to 1970
1971 to 1976
1987 to 1991
1992 to 1999
2000 to 2005

Specifications

Engine: V8, 5.7L
Power: 170 hp
Torque: 280 lb-ft
Transmission: Automatic
Drivetrain: RWD

Common questions

How much does a Pontiac Bonneville cost?

Across every sale we have on file, 7 have sold publicly at a median of $8,600. The Shifty Estimate for a well-kept example is $4,100. Cars have changed hands anywhere from $3,075 to $5,125, depending on mileage, color, and history.

What is a 1977 Pontiac Bonneville worth today?

The Shifty Estimate is $4,100. That sits below the $8,600 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: 7 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.

What has a Pontiac Bonneville sold for at auction?

The 3 most recent public sales we have on file:

$4,077Sep 18, 2026Gold · 86,000 mi
$8,300Jan 25, 2025Gray · 19,000 mi
$14,250Mar 30, 2021Red · 4,000 mi

About the 1977 Pontiac Bonneville

The late-seventies Bonneville marked Pontiac's transition into the downsized era, losing the full-size drama but gaining surprising relevance for collectors today. Built on GM's new B-body platform, these Bonnevilles shed nearly 800 pounds while maintaining their premium positioning within Pontiac's lineup. The 1977-79 models featured Pontiac's last big-blocks, including the legendary 400 and 403 V8s, making them the final breath of the muscle car era. Post-1980 examples switched to smaller displacement engines but offered improved fuel economy and handling. The clean, angular styling by Bill Mitchell's team has aged remarkably well, especially on coupes. While overshadowed by their muscle car predecessors, these Bonnevilles represent accessible entry points into Pontiac collecting, with well-preserved examples becoming increasingly sought after. The 1977-78 models with original 400 engines command the strongest interest among enthusiasts who appreciate their historical significance as the end of an era.