One of the characteristics of the car is the maximum speed. For the average driver it is not as significant as fuel consumption or car acceleration time to 100 km / h, but also an important indicator. Maximum speed can be called a measure of the perfection of the machine.
The maximum speed depends on many factors, the main ones are:
- the motor;
- the wheel (wheel diameter, width of tires, traction, tire pressure);
- vehicle weight;
- streamlined of body;
- suspension tuning (ground clearance, etc.), transmission (gear ratios);
- and others.
In addition, the maximum speed is influenced by external effects, such as the weather (cold – tire roll less, hot – engine does not develop full power, drizzling rain will reduce the speed of 2-3 km / h, the wind subtract / add 5-7 km / h, low blood pressure – slightly increase the speed, etc.) or the quality of the road surface.
In most cases, to increase the maximum speed, engine is boosted.