Difference between 68:s

[KMA]

http://www.google.se/imgres?q=chevel...9,r:5,s:0,i:84

http://www.google.se/imgres?q=chevel...r:18,s:0,i:125

Why is there a difference between the chrome molding starting at the outer grillextensions on the fender?? The top one has , and the bottom one has not Is it an option? Please explain to me
Im just a swede who wants a chevelle 66 or 68

Please explain which years has this little triangle extension. I preferre this look and as i understand it came on the 66:s , not on 67:s , came back 68 and 69. The 69 has other taillights though.

I would really appreciate your help