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Revenues - Retail Automotive Dealership (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenues |  |  |  |
Total revenues | $ 7,695.3 | $ 7,590.8 | $ 22,962.1 | $ 22,735.3
Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | 6,570.1 | 6,340.7 | 19,656.9 | 19,434.1
Retail automotive dealership | U.S. |  |  |  |
Revenues |  |  |  |
Total revenues | 3,863.9 | 3,584.3 | 11,350.0 | 10,712.0
Retail automotive dealership | U.K. |  |  |  |
Revenues |  |  |  |
Total revenues | 2,087.4 | 2,265.7 | 6,496.4 | 7,211.2
Retail automotive dealership | Germany, Italy, Japan, and Australia |  |  |  |
Revenues |  |  |  |
Total revenues | 618.8 | 490.7 | 1,810.5 | 1,510.9
New vehicle | Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | 2,961.1 | 2,890.2 | 8,925.0 | 8,688.6
Used vehicle | Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | 2,242.8 | 2,123.9 | 6,643.8 | 6,735.9
Finance and insurance, net | Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | 195.9 | 193.1 | 594.6 | 607.8
Service and parts | Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | 818.3 | 778.0 | 2,424.3 | 2,276.9
Fleet and wholesale | Retail automotive dealership |  |  |  |
Revenues |  |  |  |
Total revenues | $ 352.0 | $ 355.5 | $ 1,069.2 | $ 1,124.9

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