2. Trailing Type A RV is called a traditional trailer in America, and it is a typical trailer. This RV does not have its own driving force, and it relies on tractors to move forward;
3. Trailing Type B RV is called five-wheeled trailer in America. It is huge in shape and has its own wheels. The shape of the sidecar is similar to a rectangle without the lower right corner, and the upper right corner is placed on the tractor compartment (mostly pickup trucks) through the trailer connection device placed in the tractor compartment.
Million car purchase subsidy