Yesterday, I was out with a friend of mine who is into Mustangs. We stopped at a dealership near here to look at a Mustang GT 500. It was a sharp car. Red exterior with white stripes. The interior was black/red. Manual transmission. It had an inflated price of $49,999 but the owner of the dealership told us that they would accept the sticker MSRP of around $45,000. My friend declined but I was curious about the gas guzzler tax. The Mustang's guzzler tax was only $1300 compared to the Challenger's $2100. I thought that their mileage ratings were similar but I found out that small differences make quite a difference in the tax. Notice the following Government table. My GTX's tax would be $7700. I think the Mustang's mileage figures are identical to an SRT-8 Charger's. So, I am still a little puzzled how they figured it.
at least 22.5 No tax
at least 21.5, but less than 22.5 $1000
at least 20.5, but less than 21.5 $1300
at least 19.5, but less than 20.5 $1700
at least 18.5, but less than 19.5 $2100
at least 17.5, but less than 18.5 $2600
at least 16.5, but less than 17.5 $3000
at least 15.5, but less than 16.5 $3700
at least 14.5, but less than 15.5 $4500
at least 13.5, but less than 14.5 $5400
at least 12.5, but less than 13.5 $6400
less than 12.5 $7700