Option 0 (the default hypothesis for any question like this): It didn't come up in the plot, and wasn't deemed an important background detail, or Orwell just di

Option 0 (the default hypothesis for any question like this): It didn't come up in the plot, and wasn't deemed an important background detail, or Orwell just didn't think about it. Option 1: In a world of severe rationing, cars are such a luxury item that they're rare or nonexistent. Option 2: Personal transportation represents a level of freedom and autonomy that is not supportive of the goals of The Party, where employment and living space are centrally planned anyway. Thus they aren't part of the world. Trucks, rail, and so on serve the Party's interest, so they do exist.