Take advantage of IRS Section 179/Bonus Depreciation write-offs in 2013 for Ram Trucks or Vans weighing over 6,000 pounds by purchasing a vehicle by the end of the year! Write off more than 50 percent of the cost of vehicles (up to $500,000) in the first two years of service and 100 percent of the cost in five years. Light duty trucks and vans (under 6,000 lbs GVWR), and passenger vehicles used for business are also eligible for significant write-offs.