Looks like Caddy headlights to me. BTW that is a pretty sharp looking Grand Prix. If they are Caddy lights you may want to grab a tape measure and head off to the local junkyard. It might take a little fabbing to get the buckets to fit properly nut none-the-less would look good. Also shop around at different junkyards. You would be surprised at the deals. When Weimer and I were looking for parts for his truck I spied a Caddy rear bumper sitting all by it lonesome. I told Weimer that is what he needed for his S-Dime was the tailights. Over $400 bucks in the catalogs. From the junkyard..$15 apiece.
