My 1st new car was a '66 coupe. Great car! The 200ci 6 cylinder got 25 mpg on the highway & was very peppy; the V8 was hard to keep rear tires on from the burnouts! From then on, I felt they got too big.
The real classics are 64 1/2- 66. You'll want to check for rust repairs & then matching numbers if you're looking for show/certification.