Final answer:
Porsche buyers typically view their cars as a reward, which aligns with trends of conspicuous consumption and symbolizing social status through owned goods.
Step-by-step explanation:
The key characteristic identified by the car maker Porsche as being similar across all buyers of Porsche cars is the sense that cars are a reward. This could be a reflection of the broader cultural trend where pleasure and acquisition are viewed as the reasons for labor, achieving happiness and success through consumption. As such, Porsche recognizes that its customers see their cars not just as a means of transportation, but as a reward for their hard work and success, which aligns with conspicuous consumption and the desire to communicate social standing.