12. Cadillac Allanté
The Cadillac Allanté, produced from 1987 to 1993, was a luxury roadster that combined American engineering with Italian design. (en.wikipedia.org) Its bodies were crafted by Pininfarina in Italy and transported to Detroit via specially equipped Boeing 747s, a process known as the “Allanté Air Bridge.” (carrozzieri-italiani.com) This unique assembly method, while ensuring high-quality construction, significantly increased production costs and complexity, making the Allanté a symbol of overengineering in the automotive industry. (carthrottle.com)