18: Mercedes-Benz GLA-Class
The GLA-Class is one of the most popular crossovers the brand has ever had, but with that success came many reliability issues. The GLA-Class is remarkable for its small size and high emphasis on driving comfort. But just an oil change for this car costs upwards of $300. The maintenance for a Mercedes-Benz model is not cheap and you will pay a premium (via Readers Digest).

The GLA-Class has also been noted for having issues with transmission reliability. There is no doubt that these problems will cost people who own a used one. If you want to save money owning a crossover, the GLA-Class isn’t the car for you. The Mercedes-Benz GLA-Class is a notable car but costs a lot to own.