Max. speed
The highest speed that the machine can develop. Usually, this parameter is indicated for certain "perfect conditions": a flat track, high-quality fuel or a full battery charge (depending on the type of engine, see above), etc. Real figures tend to be somewhat lower; however, different models can be compared with each other according to this characteristic.
High maximum speed is important primarily for "racing" cars (ring and short-course, see above); in stunt and drift models, it does not play a decisive role. Also, you should pay attention to the maximum speed values when buying an amateur model for entertainment — here you need to take into account the features of its application. For example, if the machine is intended for a 3-4 year old child as a toy in an apartment, high speed will not be an advantage, but a disadvantage (especially since the cost of the “apparatus” directly depends on its speed).
Base length
The wheelbase length is the distance between the front and rear axles of the car. This parameter determines a number of features of the behavior of the model in motion. So, a longer base provides stability during acceleration and predictability when cornering; in turn, a shorter one provides better cross-country ability, manoeuvrability and controllability in a skid. Of course, only models of the same type and scale can be compared with each other in terms of wheelbase length (see both points above); and this parameter is of key importance only for professional automodel sports.
Ground clearance (ride height)
Ground clearance, or ground clearance, is the distance from the lowest point of the car body to the road surface. Large ground clearance is important for off-road models (buggies, truggies, "monsters", see "Type"): it increases the cross-country ability in general and allows you to overcome individual point obstacles (for example, pebbles), simply passing them under the bottom. In turn, models for high-speed driving on a flat surface (for example, circuit racing) have a small clearance to reduce aerodynamic drag.
It is possible to compare different models by clearance only within the same scale (see above).
