Gustavo is self-employed and purchased an automobile on January 1, 2020, for $50,000 to be used exclusively in his business, He deducted the standard mileage allowance in 2020 for 15,000 miles of business miles. On January 1, 2021. he decides to deduct the actual costs of his automobile instead of taking the standard mileage allowance and will use the straight line method of depreciation. What is his basis in the automobile as of January 1, 2021, for depreciation purposes