340 dart or duster... what one is worth more???????????

i looke on nada to see that a 70 duster 340 is mid retailed at 17,800 and a 70 dart 340 is only at 11,000

i thought that the dart 340 is more of a rare car. anyone know how many 70 dart 340 were made and how many 340 dusters of the same year.

where do i look for the amount of each color that were produced? thank you