Come on people, do a search. We've discussed this to death...it won't work.
Even aftermarket 16" steel wheels won't fit. Ask me how I know.

Vitaras, XL7's, and GV's use different brake parts than Trackers. You can verify this on NAPA or Advanced Auto's websites if you want.
A former poster here got 15x7's steelies with 3.5" of BS to fit his GV only after using 1" wheels spacers AND grinding on the calipers.