Ask HN: Why aren't there any cars in Nineteen Eighty-Four?

In the entirety of George Orwell's Nineteen Eighty-Four, I haven't noticed a single car or truck in the streets of Oceania. Sure, Winston takes the train once or twice, but no cars? I would have thought the generally envisioned future of the 40's included car-ridden roads. Was this novel even more ahead of its time than I thought?