Eligibility to claim Section 179 Deduction and standard mileage or actual cost deduction for a newly aquired car.

I will be purchasing a used car for business use before the end of this year. To enable myself to claim either standard or actual cost rate deduction in future years, I need to claim standard mileage rate this first year correct? Does this disqualify me from a Standard 179 Deduction however, if I claim standard mileage rate?