Roughly 60,000 American cars are still working the streets of Havana, kept alive for over six decades without a single factory replacement part reaching the island. Cuba’s 1959 revolution triggered a US embargo that never lifted, freezing the classic car market in place and forcing owners to fabricate parts, source Soviet substitutes, and even swap in diesel engines just to keep their “Yank Tanks” running. Read on for how economics, not nostalgia, built one of the world’s most unusual classic car fleets.