What was the primary safety defect that led to the infamous Ford Pinto recall in the 1970s?

The transportation industry has seen numerous product recalls throughout history, some more notorious than others. Vehicle recalls can stem from design flaws, manufacturing defects, or safety concerns discovered after products reach consumers. This poll tests your knowledge about one of the most infamous product recalls in automotive history that led to significant changes in corporate responsibility and safety regulations.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Faulty fuel system design that could rupture in rear-end collisions, causing fires
Steering column malfunction that caused drivers to lose control at high speeds
Brake system failures resulting in an inability to stop the vehicle effectively
Transmission defect that caused the vehicle to unexpectedly shift into reverse