If you want a non-turbo W123 300D, then I would suggest a 1981 model, since that is the only year with the updated ACC. I would suggest that you look for a model with a turbo, because I think you might be more happy with it. I wish that I would have bought a car with a turbo, since my n/a 300CD can be a dog at times, and the turbo would fix the problem for me.