A honest shot at 70 L78 L89 Chevelle

[SS427]

I hear what you are saying but do not think it is accurate to divide 2144 by 17 colors. First of all, there were more colors than that available (special order) and colors like Misty Turquoise, Mist Green, Daytona Yellow, Hugger Orange, etc are in that mix but far fewer were produced which means it raised the number on Cranberry Red, Black and Forrest Green, the most common colors produced. Red likely being the most common of all of those followed closely by Forrest Green. I would likely agree with your 3 out of every four being manual or at least very close to that. Regardless, any real L78 car has to be considered rare.