From Alfa Romeo to Volkswagen, these 18 vehicles are getting killed off.

Depending on the segment, the lifecycle of a vehicle is typically pretty short. Most companies won't go five years without refreshing or revamping their cars. The hope is that they can sustain sales success for at least another few years. But in a lot of cases, the only answer is to kill off underperforming vehicles entirely.

These 18 cars, trucks, and SUVs fall into the latter category. Instead of reviving them, companies like Cadillac, Ford, and Volkswagen, decided that they weren't worth the time or money it would take to keep them fresh. Some will be missed, but frankly, most of them we can live without.