Torque from the engine is delivered to all 4 wheels. Hence, 4 wheel drive.
4X2 means torque is delivered to only 2 wheels. Hence, 2 wheel drive.
4 wheels, 4 wheel drive= 4X4.
4 wheels, 2 wheel drive =4X2.
@kritiper If it’s a 2-wheel drive, what is the first “4” for? Can’t we assume that cars typically have 4 wheels, so if the first “4” refers to wheels, isn’t that redundant and unnecessary?
@2davidc8 I suppose so, but that’s the way it is. Compared especially to the new three wheeled cars, and motorcycles/bicycles. When I talk about 4 wheel drive vehicles, I say “4 wheel drive.” Same with my 2 wheel drive truck.