Popularity of the model 5:

• Year of manufacture.
• The premium brand factor .
• The number of video reviews of the tire on youtube.com .
• The number of news items about the model .
• The number of times the tire was involved in professional tire tests.
• The fact of the tire being on the bestseller lists on such reputed websites as amazon, tirerack, oponeo, simpletire, and others.
• The number of tire types and sizes .

Value, max: unlimited
Value, average: 27