 Fears of liability concerns and the bad publicity possibilities in giving the public a car that was so dangerously powerful are often cited as reasons, but it might simply have been that Ford doubted that an engine so unsuited to street use could sell in such numbers.The 1964s represent a high point in early 1960s Ford quality, durability, and styling.They were not only enormously popular, but proved to be so durable that many continued to run well past the 100,000 mile mark without a major overhaul.