According to this volvo and saab are not the safest
http://www.informedforlife.org/CRSriskorder2006.pdf (gotta zoom in to see it)
The safest car is Acura RL
Acura TL is safe too
Audi A8 is alright
Saab is safe but RL is safer, I woudn't wanna drive a Saab or Crown Victoria or Mercury though, I find those unattractive but the TL, RL, and Audi are decent looking plus safe too.
All those big cars like Escalades and Hummers are rated real poor...