What is the normal RPM at 110 km/h?

[LeCassandra]

During normal driving, the engine RPM in the highest gear is as follows: at 100 km/h, the RPM is generally around 2800; at 110 km/h, the RPM is generally around 3200; at 120 km/h, the RPM is generally around 3400. Different vehicle models, engines, transmissions, and other factors can cause variations in engine RPM at the same speed. A one-sided judgment is not comprehensive enough. Factors such as displacement, power, transmission type, the RPM at which the engine reaches maximum torque, and tire diameter must be considered to determine the RPM range. The engine operates most efficiently within the 2000-4000 RPM range, which is referred to as the healthy RPM zone. RPM that is too low or too high is not ideal. If it's too low, fuel combustion is incomplete, leading to carbon buildup and engine damage. If it's too high, excessive wear occurs on the engine cylinders and transmission gears, potentially harming the engine. Higher speeds correspond to higher gears, meaning the transmission gear ratio increases. Speed and gear have a corresponding relationship. Therefore, at a given speed, the transmission gear ratios of different vehicles are generally similar, so engine RPM and wheel circumference determine the vehicle speed.