What does line mean?

[HazelAnn]

line is a model kit under the Volkswagen brand, and many Volkswagen models are equipped with the r-line kit. Audi also has many models equipped with the s-line kit. 1. Model changes: Models equipped with the r-line kit do not have any changes in performance or chassis, but only add some more sporty exterior and interior kits. High-performance models under the Volkswagen brand all carry the letter r, such as the Golf R and Scirocco R. 2. Sport kits: General sport kits include exterior and interior parts. Exterior parts include front and rear bumpers, side skirts, brake calipers, wheels, spoilers, etc.; interior parts include seats, seat belts, steering wheels, etc.