I had checked with my accountant prior to the purchase and Section 179 is governed by GVWR, not curb weight. According to my accountant, another thing that tilted it in my favor is that we have 3 vehicles and 2 drivers in our household, so I automatically have the truck as "100% business use" since we have an additional POV. Of course, the other biggie deduction is being able to claim all gas and insurance as a business expense. I also own my own business, you can't take the deduction as an employee.