Been trying to search through the mod exchange for good slicktop cop cars.  Preferably ones with liveries, for texture replacements.  One of the only ones I can find is this '99 CVPI.

 

But there don't seem to be any with good, new interior lights.  The lack of a big lightbar means you'd need more than two little LED lights in front to be visible to traffic.  Any models out there?

Hmm hyperlinks don't seem to work.  http://www.lcpdfr.com/files/file/9164-99-slicktop-sahp_smpv

But there don't seem to be any with good, new interior lights.  The lack of a big lightbar means you'd need more than two little LED lights in front to be visible to traffic

Completely unrelated. Look at the LAPD slicktop cars. They have the minimum lightning, and they're still noticed by traffic. A slicktop doesn't need to be a christmas tree.

Well, police4 is quite nice... :D

I have two.

Vapid Stanier "Detective": https://www.gta5-mods.com/vehicles/unmarked-detective-vapid-stanier

Police4 is an unmarked Dodge Polara in my Polara Policing Pack: https://www.gta5-mods.com/vehicles/the-polara-policing-pack-f0688d69-e6f8-4427-b72b-5c7decb0fe1f