To help you out a little the Dallas Police Caprice's were white with blue interior's. I do recall them with the tan interior's but
those were mostly on the 89-90 Caprices that were used here.
The 91-95 Caprices that Dallas used had either the blue or black interiors. The interior color kind of depended on what DPD had ordered on
the Caprices from the GM plant in Arlington. I do remember a few of the later 90's Caprices having tan interiors but not many.
Hope this helps you a little.