17. Cadillac ELR
The ELR should have been a success. But it turned out to be a failure and a forgotten model even though it’s just two years old. GM’s premium plug-in hybrid was eagerly expected, but the market seemed to ignore it as soon as it was introduced (via YouTube).
Despite its cool looks, the ELR had an underachieving drivetrain consisting of a 1.4-liter engine, an electric motor, and a pack of lithium-ion batteries. The power output was somewhat satisfying at 217 HP. But the electric-only range was disappointing at just 37 miles. In the end, the base price of $76,000 seemed too much for what the car offered. All of that resulted in less than 3000 sold units and Cadillac discontinued the model after just two years on the market.