There's no single top speed for a 2001 Buick. The top speed depends heavily on the *specific model* of Buick (e.g., LeSabre, Regal, Century, Park Avenue, Rendezvous) and even the engine and transmission options within that model. Factors like tire size and condition, vehicle weight (due to modifications or cargo), and even atmospheric conditions will also influence top speed.
You won't find a precise number in a spec sheet because manufacturers typically don't publish top speeds. They focus on acceleration and other performance metrics. Trying to reach a vehicle's top speed is also generally unsafe and illegal.
