difference between 91 & 92?

Well folks, I weighin all my options in my situation to keep my 92 and slowing bring it back to where it once was. OR...getting a 91 that's already where I'm trying to go.

I looked on the Auto Mart site for 91s and 92s cause I love the half rear wheel look that the later models don't have. I found a 91 thats exactly like my current one. 305, all options, even the factory chrome setup on the bottom half. Only difference is the color and it's cloth instead of leather. I'm thinking about inquiring with the seller but need yall, fellow Caprice lovers, to tell me if theres ANY difference between the 91 and 92. Because I know when automakers come out with they cars, they try to improve them every year, even if it's the smallest little thing.

Any help or thoughts are appreciated in advance.

dirt & water

I not an expert, but here is what I have learned about police package caprice (may or may not be similar to civilian caprice):

91 caprice could use plastic or stainless steel hubcaps. The plastic ones tended to come off all the time.

91 caprice had black B- and C-body pillars, despite whatever color the rest of the car was.

92 caprice had some intake and exhaust modifications to improve intake and reduce backpressure. It sweezed out a few more ponies.

For any more information for police package caprices, check out:
http://www.9c1.com/brochures/index.html