Since many european cars use ATE calipers it is very likely that there might be some other automaker that uses the same brake pad backing plate with a similar or perhaps even identical caliper. There are some Saab models that use the identical brake pad backing plate, but the clips that are attached to the backing plate that grasp the inner wall of the caliper piston is much smaller. It would take some effort to use the Saab pad and have it properly attach.
Personally, having had some experience around european cars, I would go out of my way to not use their brake pads. Although they tend to provide more initial bite, they wear fast, they wear rotors quickly, and they tend to be noisy.