Does keeping an old car running "benefit" the environment ?

[Black Landlord]

incognegro wrote:
do the old cars just go into a landfill?

Depends. Most get sold and driven a few more years. Ultimately they get parted out depending on the value of junkyard real estate, the popularity of the model and the universality of its parts . . . The most environmentally friendly possibility for mrbigstuff's car would actually be to put the car in the landfill and -not- reuse any of its parts to keep other cars running.