How many use the tax deduction for GVW?

[mdoyle]

The other day at Starbucks a gal was ribbing me about "peak oil" and my H2 being a gas hog, nothing mean, just a different point of view.

I said, you wanna know one of the best things about a gas hog like the H2? It weighs so much you can actually deduct it's cost from your taxes!

So, how many here use the GVW deduction and how do you use it? I've got an accountant to ask, but there's a fee for that