The 1997 Saab 900 tire size depends on trim: the S, 2D Convertible, Automatic takes 195/60VR15; the S, 2D Convertible, Standard takes 195/60VR15; the S, 2D Hatchback, Automatic takes 195/60VR15; the S, 2D Hatchback, Standard takes 195/60VR15; the S, 4D Hatchback, Automatic takes 195/60VR15; the SE, 2D Convertible, 2.0 N, Automatic takes 205/50ZR16 87W; the S, 4D Hatchback, Standard takes 195/60VR15; the SE, 4D Hatchback, 2.0 N, Standard takes 205/50ZR16 87W; the SE, 2D Convertible, 2.0 N, Standard takes 205/50ZR16 87W; the SE, 2D Convertible, 2.5 V, Automatic takes 205/50ZR16 87W; the SE, 2D Hatchback, Automatic takes 205/50ZR16 87W; the SE, 2D Convertible, 2.5 V, Standard takes 205/50ZR16 87W; the SE, 2D Hatchback, Standard takes 205/50ZR16 87W; the SE, 4D Hatchback, 2.0 N, Automatic takes 205/50ZR16 87W; the SE, 4D Hatchback, 2.5 V, Standard takes 205/50ZR16 87W; the SE, 4D Hatchback, 2.5 V, Automatic takes 205/50ZR16 87W, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
S, 2D Convertible, Automatic: 195/60VR15
S, 2D Convertible, Standard: 195/60VR15
S, 2D Hatchback, Automatic: 195/60VR15
S, 2D Hatchback, Standard: 195/60VR15
S, 4D Hatchback, Automatic: 195/60VR15
SE, 2D Convertible, 2.0 N, Automatic: 205/50ZR16 87W
S, 4D Hatchback, Standard: 195/60VR15
SE, 4D Hatchback, 2.0 N, Standard: 205/50ZR16 87W
SE, 2D Convertible, 2.0 N, Standard: 205/50ZR16 87W
SE, 2D Convertible, 2.5 V, Automatic: 205/50ZR16 87W
SE, 2D Hatchback, Automatic: 205/50ZR16 87W
SE, 2D Convertible, 2.5 V, Standard: 205/50ZR16 87W
SE, 2D Hatchback, Standard: 205/50ZR16 87W
SE, 4D Hatchback, 2.0 N, Automatic: 205/50ZR16 87W
SE, 4D Hatchback, 2.5 V, Standard: 205/50ZR16 87W
SE, 4D Hatchback, 2.5 V, Automatic: 205/50ZR16 87W