The only reason to get a 4 wheel alignment is if your car was in a frame altering accident. Other than that your wasting your money. Don't pay extra for a "4 wheel" alignment, it doesn't do anything. The front is the only thing that really matters but even then, if your SVT is lowered, it won't be a true alignment as camber cannot be adjusted.
4 wheel alignments are generally for AWD, 4WD and RWD cars. FWD benefit very little from this type of alignment.
