I have similar problem with my '97 Mondeo. 205/55/15 Nokian NRV tyres have the same pattern on the inside. Took her to the alignment shop. As I suspected, Toe-in was -1.5 mm when it should be 0. Adjusted to that. All other measurements were within tolerances (camber, caster and so on). At least the wear hasn't increased since the alignment.
