5: Mercury Mariner
The Mariner was a compact SUV sold by the Mercury brand in the 2000s. It was based on the Ford Escape model and it had a lot going for it. Unfortunately, Ford spent a lot of money on advertising and development of the SUV and it never really caught on with consumers (via Hot Cars).
The Mariner was targeted toward a female demographic but never managed to sell well. It was also one of the first mass-produced hybrid SUV models but even that wasn’t enough to bolster the sales. The Mariner was the final model in the Mercury brand portfolio when the nameplate was discontinued.