To sorta add to Jim's post...
VCT is only on 98+, if getting a zetec get a pre98 if possible.
Platform pros:
Upgrade parts available from Ford such as Roush stuff (well, back in the day, springs/sway bar/wheels), 3L engine, Torsen diff,etc.
Fuel mileage subpar in atx equipped cars may only apply to duratecs, my zetec gets awesome gas mileage. Because of gearing, it's real good at higher speeds.
