2. Cadillac Allante
Cadillac envisioned the Allante as a competitor to the Mercedes SL convertible. It was a two-seat luxury convertible designed by Pininfarina. It came with a Northstar V8 engine and front-wheel drive. That was quite an unusual combination, but the car looked and performed quite well (via Retro Motor).
The production process was specific because the actual fabrication happened in Italy in the Pininfarina factory. And then they shipped cars to the U.S. by jet, which affected the cost of the final product. The Allante stayed in production until 1993 and they built just over 21,000. The car proved too expensive to produce. Allegedly, the factory lost money on every Allante they made.