Whenever I take my car out it seems like I'm constantly asked, "is that a '70?". Nobody has ever asked if it was a '71 or '72 or whatever. I think that speaks volumes about value. For whatever the reasons, alot of people think '70's are more desirable.
Personally, I love '71's. The tall spoiler/ front spoiler and highback seats are all cool. Plus the steering wheel is neater too
But at the end of the day make mine an apple.
