Your right Ray it does depend on the year and model.
Mines the 06,and has a towing limit of 1500kg and a 100kg limit on towball.
I may be wrong Ray,but i wouldnt class the CRV as a 4x4.
Mines a permanent front wheel drive,and the rear wheels kick in electronicaly if the front wheels begin to lose traction.
I chose the CRV as a compromise between a car and a 4x4.
Adrian