Use a track-focused car instead of a road-oriented muscle car when repeated road-course sessions are the main objective and the chosen vehicle better supports that job. Braking, cooling, tire suitability, predictable response, and the cost of repeated use matter alongside power. A strong acceleration figure alone cannot establish circuit readiness.
The categories can overlap: a muscle car can also be a capable track car, especially in an appropriate factory configuration or a coherently prepared form. This comparison concerns paved road-course use rather than drag racing, which has different requirements. Choose the actual vehicle and event combination, not a badge-based rule that excludes every muscle car.