The word driver is more general - anybody who drives a vehicle is a driver. You are a driver when you are driving your car. Some people work as bus drivers and taxi drivers (the drivers of trains are usually called conductors).
A chauffeur is a person who is employed to drive a car for a private individual. Rich people and celebrities often have chauffeurs so that they do not have to take public transportation, or drive themselves.
All chauffeurs are also drivers; not all drivers are chauffeurs.
To avoid injury or damage to equipment, do not use the motor and driver beyond their specification values.Do not touch the motor and driver while in operation or immediately after operation has ceased. The surface of the motor and driver is hot and may cause burn injuries.