There are many boroughs in London with a majority of households not owning a car - more than 60% in Islington, Hackey, Tower Hamlets, Camden, Westminster, City, with Haringey, Hammersmith/Fulham, Kensington/Chelsea, Newham, Southwark, Lambeth, Newham, being over 50% without a car.

Oddly the Isles of Scilly, which are tiny, and lack a proper vehicle ferry to the mainland, has about 50% of the population with a car or van. The furthest you could actually go would be able 2 miles.