* Size of the bus: A smaller city bus will have significantly less horsepower than a large intercity coach or a school bus.
* Manufacturer: Different manufacturers use different engines with varying power outputs.
* Engine type: Diesel engines are most common in buses, but some may use gasoline or alternative fuels, each with different horsepower capabilities.
* Age of the bus: Older buses may have less powerful engines than newer models.
You could find the horsepower rating for a *specific* bus model by looking up its specifications in a manufacturer's brochure or online. However, a general range might be from 200 to 500 horsepower, but this is a very broad estimate and many buses fall outside that range.
