Pontiac Bonneville MPG by year — every rating on record

The Pontiac Bonneville has a combined EPA fuel economy rating for 22 model years, from 1984 to 2005. Across those years its best rated version returned 21 mpg (1984) and its thirstiest returned 15 mpg (1984). The EPA record holds 51 configurations for this nameplate, most recently a Large 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 Bonneville placed highest in 1991 at #3 of 19, and lowest in 1985 at #27 of 34. It spent 16 of its 22 ranked years in the top half of its class.

Every configuration on record

All 51 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 5 of 9 year-over-year steps improved the top rating.

What Bonneville fuel costs over a year

At the EPA's 11,500 miles a year, the 2005 Pontiac Bonneville burns 548 to 639 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 2005 model year is $2,950 to $3,450 a year in fuel, or $3,500 more than the average new vehicle over five years.

How it compares with other Large Cars

Across the 305 nameplates EPA classifies as Large Cars, the median best combined rating is 21 mpg. At 21 mpg the Pontiac Bonneville is exactly at the median.

• All Large 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.