I don't have a problem using used parts on a car. Most of the cars in the junkyard are there because of accidents... some fatal. I wouldn't go out of my way to purchase a car just because someone died in it though.
I think I mentioned in another thread about a buddy who bought a wrecked Harley just because the former owner died while riding the bike. He enjoyed riding the Harley around and telling others about the fate of the former owner.
