MPC/AMT has tried to upgrade the kit a bit here and there over the years, but, it is still basically the same. The last version before it became the Duke's car was a Stock Car and thus, it did not have much street car detail left. It had the Charger 500 flush rear window instead of the tunnel style that is normal on the Charger. I think it has been corrected since.
Trust me, when I got my hands on it back then, I did not care or know what was wrong with it. All I knew is that it was going to be doing some knarly jumping over my other models as soon as I got it built! Which was an hour later! LOL!