345ARC said:
Autotrans Imprezas are FWD only until you need it, when the centre clutch
is applied by the Transmission Control Unit to give a variable amount of
power to the rear wheels. Manual trans cars are full-time 4WD, with a
viscous damped centre diff. Most of the time, you wouldn't notice the
difference. (no pun intended)
I could be wrong, but I don't think this is the case at all with the auto
wrx. From a dead stop with normal acceleration on ice the rear tires both
spin and one of the fronts spins a bit as well (this is SLICK ice I'm
talking about here). If anything my car seems like it's RWD until you need
AWD. Maybe it's just the WRX, but I don't think it's fair to say they are
ALL FWD until you need the AWD. Also, if this truly were the case I
wouldn't be able to take it to track days and hit the drift course (not very
well, but I have managed 30 seconds of drift as a personal best....that sure
makes the SR20DET 240SX guys look at you weird like when you drift an
AWD...albeit ackwardly)