I just watched this episode a few days ago and didn't notice that. I love how the front end just fell off so easily. It's like it wasn't bolted on. The General Lee also never gets dented or scratched no matter how much it smashes into other cars. lol
Another thing to note in 'Dukes Meet Cale Yarborough' is the General Lee is a 1968 Charger. The small round ('68) running lights are just painted over with the orange. They didn't remove them. A few 1968 Chargers were used in the show with '69 grills and rear tail light panels but in this episode they didn't remove the round running lights on the fenders and quarter panels, they simply painted over them. This can be seen it other scenes in this episode.
I think Daisy should have ended up with Enos. It's too bad they went that way again in the reunion movie.
I'm with RogerDuke, Hazzard County hasn't changed. I have all the seasons on DVD and will continue watching them forever and remembering the show that way.
BTW, I've never seen the 2005 movie and most likely never will.