2005 Pontiac Bonneville

Full-Size Sedan Regular
Pontiac Bonneville 2005
21MPG Combined
2 Trims
← 2004 2005
Updated February 27, 2026

Looking at the 2005 Pontiac Bonneville? This Full-Size Sedan offers 18–21 combined MPG depending on trim and comes with 2 available configurations. We break down the specs, safety data, and how it compares to the competition.

2005 Pontiac Bonneville Specifications

SpecValue
Combined MPG18–21 combined MPG depending on trim
City MPG18
Highway MPG27
Body StyleFull-Size Sedan
Fuel TypeRegular
DriveFWD
Available Trims2

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto18/27/213.8L 6cylAutomatic 4-spd
Auto15/22/184.6L 8cylAutomatic 4-spd

Annual Fuel Cost

Based on EPA estimates, the 2005 Pontiac Bonneville costs approximately $2,275 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

Compare the 2005 Pontiac Bonneville

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