The basic details is this:
If you own a Class M Vehicle (Multipurpose), and it's over 6000 lbs GVW, the intent is to force you to pay an extra $750 a year.
To follow the bill, click here:
http://mlis.state.md.us/2005rs/billfile/hb0424.htm
What is fascinating is the list of vehicles that would get hit. Some of them include:
Isuzu Ascender
Ford F150 Styleside
VW Touarag
BMW X5
A list of vehicles that would be hit can be found here:
http://www.selfemployedweb.com/suv-tax-deduction.htm