If you can't live with FWD in the SAAB, what makes you think it will be tolerable in an AWD Volvo? Isn't the nominal torque split 95/5 F/R in the V70R? That sounds like FWD dynamics to me until they start spinning. The Haldex system is cool and supposed to work quite well, but until it's doing something it's just sitting there.
Or do I not know enough about the V70R?