FHP Ventvisors
 

I just looked at a picture of a '90 on .org, and it didn't have them. Then I got to thinking, my old '90 never had them, and my current '90 and '91 dont appear to have ever had them. Then it occured to me that '90 and '91 cars were the only years to have power windows, so did FHP use Ventvisors on manual window cars so rain wouldnt come in in case the passenger window was cracked?

No rhyme or reason. Check out the in-service section for plenty of pics of cars without them. :)