Even mass-market companies like Honda, Toyota and Volkswagen have released cars that remained low-volume models. Some were largely overlooked by their target audience for a multitude of reasons, like BMW's exquisite 507 (pictured). Others were quickly canceled for cost reasons, like Volkswagen’s Australia-bound Beetle-based buggy. Join us for a look at some of the rarest cars made by mainstream brands.

For consistency, we’re only including street-legal production models built by the factory. We’re leaving out cars launched as limited-edition models (the Bugatti Centodieci, for example), coachbuilt models, race cars not designed for street use, prototypes and concepts. Let's take a look: