'69!... I like the 1/4 windows better.. and the front end.. the backend... and... here's my '69 300 Deluxe SS 396 sport coupe that I just picked up a couple of weeks ago. I added the wheels, tires and the vinyl top... Here's a link to a thread I started over at Team Chevelle.
http://www.chevelles.com/forums/showthread.php?t=366353