I could be wrong, but that could be an interceptor that hasn't been painted/decal-ed. Thats the same looking front that I think they have. My town has atleast 4 (thats as many as I have seen at once) and it looks similar. Other than that, I have no clue.
MK1 2.3 sedan aka 'Pete'/ MK1 zetec sedan
MK1.5 SES sedan / MK3 sedan aka 'rePete'