Advice on buying a '75 dart.

Nice car, $6k? Its a $6k car to whoever would cough up that kind of dough. Offer him $4k-$4500 and tell him your reasons why. Mine would be having to spend the $$ relocating seats and any other upgrades you can think of.

As far as the seats go, I wish I had a rear seat like that in my car when I would go on a date to the drive-in theatre, life would have been much simpler and more comfy!