Concept cars often introduce new styling themes or advanced technology, or preview a brand’s entry into a new market segment. But equally, concept cars can be pure marketing.

Many brands in need of more attention have pretended a mock-up, without even a functioning interior or any mechanical components, could be in showrooms sometime soon. Whether a fully driveable machine or a flight of fantasy, the concept’s main job is to grab attention. Here are six recent efforts that have done just that.