Topic for you to research is vehicle depreciation/179/bonus:

Determine the class life and first-year limits for depreciation, bonus, and section 179 for the following:

Cars

Trucks, Vans, and SUVs with GVWR less than or equal to 6000 lbs

Trucks, vans, and SUVs with GVWR greater than 6000 lbs

Other vehicles not subject to personal use (note you should also research what would be included in this category)

If I was going to buy a business vehicle, which type would allow me the most deduction in the first year?