Prudy is a recent college graduate who has taken a position with a real estate brokerage firm. Initially, Prudy will be selling both residential and commercial property. She is thinking about buying a new car at a cost of $14,500. However, the salesperson is trying to sell her a car that costs $18,000. He has assured her that because she is now self-employed, the entire cost of the car is tax deductible. Prudy comes to you, her tax accountant, for advice about the purchase of the car. She tells you she expects that 65% of her driving will be for business purposes. She asks you to write her a letter specifying whether she can deduct the entire cost of the car, which expenses she needs to keep track of, and how these expenses are used in computing the business deduction for her car.