The NASCAR pace car's speed varies significantly depending on its specific track role, but it typically operates between 45 mph and 80 mph (72 km/h to 129 km/h). Its primary job isn't to be fast, but to control the field safely under caution periods, during rolling starts, and for other track procedures.
The exact speed is determined by the pace car driver, a highly experienced professional, in coordination with NASCAR race control. They adjust the pace based on track conditions, the need to bunch up the field, and to allow safety crews to work. For a rolling start, the pace car will lead the pack at a controlled speed before peeling off into the pit lane to begin the race.
Here’s a breakdown of typical pace car speeds in different scenarios:
| Scenario | Typical Speed Range | Purpose & Notes |
|---|
| Caution Periods | 45 - 65 mph (72 - 105 km/h) | To safely slow the field, allow track cleanup, and bunch cars together. |
| Rolling Starts | 55 - 80 mph (89 - 129 km/h) | To build speed for a clean, fair race start after a caution or at the beginning of a stage. |
| Pace Laps | 55 - 70 mph (89 - 113 km/h) | To help drivers warm their tires and brakes before the green flag waves. |
| Double-File Restarts | 55 - 75 mph (89 - 121 km/h) | To manage the field as it aligns in two rows for a restart. |
It's a common misconception that the pace car is a high-speed vehicle. While many pace cars are production-based performance cars capable of much higher speeds, their on-track duty is about precision and control, not outright velocity. The skill of the pace car driver is in maintaining a perfectly consistent speed, which is more challenging for the following race cars than a simple high-speed run.
