In January 2013, Mr. D, who is self-employed, purchased a new automobile, which he uses 100% for business. During 2013, he drove the car 14,000 miles. Mr. D also owns another automobile, which he uses occasionally for business but primarily for personal purposes. During 2013, he drove the second car 2,000 business miles. The second car is not fully depreciated. What is the amount of Mr. D's automobile expense deduction using the standard mileage rate?