I don't think they would clear on the earlier cars with 11" discs, but depending on the wheel, might fit on later cars with the smaller front brakes. If I see the owner, I'll ask him.
And to some extent, it's not the wheel diameter so much as the overall diameter that folks are looking for. IOW there are some choices in low profile 14" tires (eg Tire Rack shows 9 "high performance" tires in 195/60-14) but most people aren't willing to live with the side effects (reduced ground clearance, speedometer error, look silly) of such short tires.
IMO the +1, +2 (or even +3) wheel changes are to side-step these problems with modern low profile tires.