Classic is the basic series, while Premium is the higher-end one, with denser and taller pile. The mat shape for a specific model is the same in both series.
These are two different templates for one model, for a different trunk shape, body type, or trim level. The clarification is given in brackets in the name, for example “for F10” or “with subwoofer”.
No, trunks of different body types differ. Choose a product marked for your body type: SD, HB, SW, Avant.
Yes, for a number of models there are separate mats for 5 and 7 seats, for example for Kia Sorento IV, Hyundai Santa Fe 3 and Land Cruiser Prado 150. The number of seats is indicated in the product name.
Take it out, vacuum it, and if necessary clean it with a brush and textile cleaner, then dry it completely. It is better not to use a pressure washer.
Textile is for dry cargo and a neat look, EVA is for wet and dirty items, rubber is for a work vehicle and tools. All three types are available in the catalog as model-specific.