city/hwy mpg rating

[95_9C1]

i was looking at a GXP description on the Pontiac site:

HERE (http://www.pontiac.com/wssearch.do?year=2009&makeId=pg&VIN=6G2EP57W19L310251&RPOList=&searchType=0&postalCode=27511&searchCity=&searchState=&VIN=&vendorId=&orderNumber=&multiVendorIds=&maximumCount=100&modelId=18103&gmModelId=&modelName=G8&styleId=308408&pvc=208&dealerDistance=75.4834)

it appears the 13/20 has been raised to 15/24

am i seeing this right?

and why would this be?

[1GXP4ME]

Does this mean we should expect a check in the mail for the GGT?:)

[Maklar]

That would be nice but none of the ones I looked up showed that. Kind of weird

[PolRoger]

The sticker still includes the GG tax. It is most likely some kind of error.