Fake leather is often disguised under catchy marketing terms. For example, fake Leather (Plastic) seats are often referred to as Vegan Leather, Faux leather, Leatherette, Pleather, PU Leather, among others.
There are also specific brand names of Fake Leather products to be aware of depending on the car you buy. These include but are not limited to: Active X, NuLuxe, SofTex, MB-Tex, Sensatec, and Sophina.
Simply put, if a seating material is referred to as anything other than Genuine Leather or Real Leather, it is likely not leather.