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CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenue: |  |  |
Total revenues | $ 19,284.9 | $ 17,232.0 | $ 14,482.5
Cost of sales: |  |  |
Total cost of sales | 16,417.4 | 14,652.8 | 12,281.5
Gross profit | 2,867.5 | 2,579.2 | 2,201.0
Selling, general and administrative expenses | 2,223.0 | 2,008.6 | 1,711.6
Depreciation | 78.0 | 70.2 | 59.6
Operating income | 566.5 | 500.4 | 429.8
Floor plan interest expense | (44.5) | (46.5) | (43.4)
Other interest expense | (69.4) | (52.8) | (45.3)
Gain on investment |  | 16.0 |
Equity in earnings of affiliates | 39.3 | 40.8 | 30.7
Income from continuing operations before income taxes | 491.9 | 457.9 | 371.8
Income taxes | (158.0) | (153.1) | (123.3)
Income from continuing operations | 333.9 | 304.8 | 248.5
Loss from discontinued operations, net of tax | (3.5) | (14.7) | (2.8)
Net income | 330.4 | 290.1 | 245.7
Less: Income attributable to non-controlling interests | 4.3 | 3.4 | 1.5
Net income attributable to Penske Automotive Group common stockholders | $ 326.1 | $ 286.7 | $ 244.2
Basic earnings per share attributable to Penske Automotive Group common stockholders: |  |  |
Continuing operations (in dollars per share) | $ 3.67 | $ 3.34 | $ 2.74
Discontinued operations (in dollars per share) | (0.04) | (0.16) | (0.03)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share) | $ 3.63 | $ 3.17 | $ 2.71
Shares used in determining basic earnings per share (Note 6) (in shares) | 89,759,626 | 90,318,839 | 90,273,747
Diluted earnings per share attributable to Penske Automotive Group common stockholders: |  |  |
Continuing operations (in dollars per share) | $ 3.67 | $ 3.34 | $ 2.73
Discontinued operations (in dollars per share) | (0.04) | (0.16) | (0.03)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share) | $ 3.63 | $ 3.17 | $ 2.70
Shares used in determining diluted earnings per share (Note 6) (in shares) | 89,759,626 | 90,354,839 | 90,330,621
Amounts attributable to Penske Automotive Group common stockholders: |  |  |
Income from continuing operations | $ 333.9 | $ 304.8 | $ 248.5
Less: Income attributable to non-controlling interests | 4.3 | 3.4 | 1.5
Income from continuing operations, net of tax | 329.6 | 301.4 | 247.0
Loss from discontinued operations, net of tax | (3.5) | (14.7) | (2.8)
Net income attributable to Penske Automotive Group common stockholders | $ 326.1 | $ 286.7 | $ 244.2
Cash dividends per share (in dollars per share) | $ 0.94 | $ 0.78 | $ 0.62
Retail Automotive Dealership |  |  |
Revenue: |  |  |
Total revenues | $ 17,896.3 | $ 16,657.5 | $ 14,329.9
Cost of sales: |  |  |
Total cost of sales | 15,288.3 | 14,180.1 | 12,153.1
Retail Commercial Truck Dealership |  |  |
Revenue: |  |  |
Total revenues | 944.1 | 125.6 |
Cost of sales: |  |  |
Total cost of sales | 797.1 | 104.5 |
Commercial Vehicle Distribution and Other |  |  |
Revenue: |  |  |
Total revenues | 444.5 | 448.9 | 152.6
Cost of sales: |  |  |
Total cost of sales | $ 332.0 | $ 368.2 | $ 128.4

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