Will it be used exclusively for your business or if there is personal-use? If it is non-personal-use there is no limit to the 179 deduction. However, Form 4562 limits for the total 179 expense deduction will still apply ($500,000). If it is is going to also be a personal-use vehicle there is a $25,000 limit to the 179 deduction not reduced related to the percentage of business use.