Difference between CRV 4X4 and 2X4?

First of all 4x4 in CRV is not real 4x4 it is called AWD. So you have 4 wheels turning all the time. @x4 only front wheel turn- like a regular car. 4x4 more weight due to differential, shafts and other small parts. 4x4 drives better on snow, mad and off road; whereas icy roads will be bad for any type of cars/trucks. 4x4 is the thing that you have to check before making the actual purchase of a vehicle( maintenance, money, real need and pleasure). antoshapink@hotmail.com