Pontiac Grand Prix MPG by year — every rating on record

The Pontiac Grand Prix has a combined EPA fuel economy rating for 25 model years, from 1984 to 2008. Across those years its best rated version returned 22 mpg (1990) and its thirstiest returned 15 mpg (1984). The EPA record holds 87 configurations for this nameplate, most recently a Midsize Cars.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Pontiac Grand Prix placed highest in 1990 at #9 of 51, and lowest in 2008 at #34 of 70. It spent 20 of its 25 ranked years in the top half of its class.

Every configuration on record

All 87 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 3 of 6 year-over-year steps improved the top rating.

What Grand Prix fuel costs over a year

At the EPA's 11,500 miles a year, the 2008 Pontiac Grand Prix burns 548 to 605 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 2008 model year is $2,950 to $4,100 a year in fuel, or $3,500 more than the average new vehicle over five years.

How it compares with other Midsize Cars

Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 21 mpg the Pontiac Grand Prix is 4 mpg below the median, which is worth about $307 a year at $3.50 a gallon.

• All Midsize Cars rankings — every nameplate in the class, best to worst.

Other Pontiac nameplates

Every Pontiac model compared → — all nameplates ranked by best combined rating, with what each one costs a year.