The WACC of Group 1 Automotive Inc (GPI) is 7.5%.
| Range | Selected | |
| Cost of equity | 8.60% - 11.40% | 10.00% |
| Tax rate | 22.80% - 23.40% | 23.10% |
| Cost of debt | 4.00% - 5.30% | 4.65% |
| WACC | 6.4% - 8.5% | 7.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.02 | 1.17 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.60% | 11.40% |
| Tax rate | 22.80% | 23.40% |
| Debt/Equity ratio | 0.64 | 0.64 |
| Cost of debt | 4.00% | 5.30% |
| After-tax WACC | 6.4% | 8.5% |
| Selected WACC | 7.5% | |