Saab 9-5 vs Scion XB
The Scion XB is more fuel-efficient at 29 MPG combined, against 22 MPG for the Saab 9-5. At EPA assumptions that is about $750 less in fuel per year. (Comparison uses each model's most efficient version.)
Side by side
What the numbers say
NHTSA has 30 complaints for the Saab 9-5 and 47 for the Scion XB. Complaint counts depend heavily on how many of each vehicle were sold, so a higher count does not by itself mean a less reliable car.
Safety recalls on file: 2 for the Saab 9-5, 0 for the Scion XB.