2003 Chevrolet Impala

Full-Size Sedan Regular
Chevrolet Impala 2003
22MPG Combined
2 Trims
← 2002 2003 2004 →
Updated February 27, 2026

Get the full picture on the 2003 Chevrolet Impala. As a Full-Size Sedan, it achieves 20–22 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2003 Chevrolet Impala Specifications

SpecValue
Combined MPG20–22 combined MPG depending on trim
City MPG19
Highway MPG29
Body StyleFull-Size Sedan
Fuel TypeRegular
DriveFWD
Available Trims2

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto19/29/223.4L 6cylAutomatic 4-spd
Auto17/27/203.8L 6cylAutomatic 4-spd

Annual Fuel Cost

Based on EPA estimates, the 2003 Chevrolet Impala costs approximately $2,100 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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