[notact]

Unintended consequence: Ford adds another rear axle to the F150.

[chung8123]

This would reduce the gas mileage negating whatever tax savings there were as well as increase maintenance. This would also damage the roads less.

[notact]

My original comment was kinda ridiculous and was not worthy of a serious response ;) But, to respond to this more seriously, the people I personally know who drive gigantic trucks would most likely be proud of their reduced gas mileage. They already deliberately drive a 15mpg vehicle primarily for grocery pickup.

[toast0]

A lot of bridge tolls are by axle count, so there's pressure not to increase those.