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INVENTORIES AND FLOOR PLAN NOTES PAYABLE (Tables) | 6 Months Ended
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Jun. 30, 2024
Inventory Disclosure [Abstract] |
Schedule of Inventories | The components of inventories, net, consisted of the following:
(in millions) | June 30, 2024 |  | December 31, 2023
New vehicles | $ | 3,892.0 |  |  | $ | 2,886.3 |
Used vehicles | 2,060.0 |  |  | 1,637.5 |
Parts and accessories | 290.9 |  |  | 230.1 |
Total inventories | $ | 6,242.9 |  |  | $ | 4,753.9 |
Schedule of Debt |
(in millions) | June 30, 2024 |  | December 31, 2023
Floor plan notes payable | $ | 2,590.1 |  |  | $ | 1,347.0 |
Floor plan notes payable: non-trade | 2,697.4 |  |  | 2,288.5 |
Total floor plan debt | $ | 5,287.5 |  |  | $ | 3,635.5 |

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