Looks good, and the price is not too bad either, I thought cop cars went for more money than that. I was under the assumption that the highway patrol cars were black and white, not green and had 440's not 383,s
I do not know if this is suppose to be a copy of a real police car or not.
I do not think the window mounted sirens were being used in 1970 but I do not follow every agency.
I do not know if any agency ever put red lights in the high beam locations.
I doubt that any agency would use the large "Police" speedometer in 1970, I think CHP last used them in 65 or so.
This looks like what someone who knows nothing about police cars does but then again I do not know every agency.