Maybe one of the ones you saw was mine? I have a 95 emerald green and live in Hartsdale. I've also seen another emerald green in town occassionally drive by as I walk home from the train station. Plus, I've seen a white SVX at Casarella's station on E. Hartsdale Ave two or three times (wheels backwards). For a while there was a white one parked at the Duane Reade (I don't think the same one), but it's no longer there.