Well, all this talk of Rallyes... I still have a set for sale. 15x7 front with 225/70s, 15x8 rear with 275/60s. Tires are BFG Radial T/As. :icon_biggrin:
For the record, I think your Mirada looks much better without the grille chrome. I'd not seen one done like that previously. I really like the look. Maybe paint your poor-condition chrome strips to match, so you can fill the holes?