Triumph Stag
The Triumph Stag was introduced in 1970 and produced until 1978. The market was impressed by the new model, which featured cool styling and an open top but still enough room for four adults and their luggage. It had a 3.0-liter V8 engine with 145 HP, which was barely enough. With its muscular appearance and V8 rumble, the Stag looked like a luxury muscle car and attracted some buyers (via Hemmings).

Unfortunately, owners soon experienced the Stag’s notorious unreliability. That, along with its higher price, sealed its chances on the American and global market. When production ended in 1978, only 25,000 cars were produced.