The top speed of a Mustang varies significantly depending on the model year and specific trim level. There's no single answer. Generally, Mustangs can reach speeds in the range of
130-155 mph (209-249 km/h), but this is under ideal conditions (and likely illegal). The higher end of that range is usually only achievable by higher performance models like the Shelby GT500 or the Mach 1. Standard Mustangs will typically have a lower top speed.
Furthermore, factors like road conditions, wind resistance, and vehicle modifications will also affect the actual top speed achieved.
