1966 Dodge Dart GT - Trying to Determine How Rare

rare and desirable are two different things.. 66 darts just aren't very collectable. that being said the early abodies are starting to go up in price since so many are being out priced from the 67-70 market. be careful what you put in to it. it will never bring 67-70 money.
They are not collectible now, but look at the Uncle Tony crowd and 318s... and slants, and 361 B engines this time next year that 66 will be a prized collectible. LOL! but seriously, the thing with early As is finding headers etc. even my 70 dart only a certain size rim will fit under it without bending the wheel lips etc. They all nice cars its just what you can do in terms of mods etc.