system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is the difference between a budget car tyre and a premium brand. What happens during the manufacture of them to make such a noticable difference in grip?

Basically, how are budget tyres so bad compared to a premium make? Different process in making them? Poor design?
gpt
First you have the rubber; what ingredients are used? The natural rubber can have several qualities, everything from pure condom rubber to rubber with sticks and insects in it. Then you have the additives, what proportions are used? Sulfur and stuff. Porpotions between natural and synthetic rubber. The best premium recipes are guarded secrets.
Some rubbers are soft and some durable, a consideration has to be done.

Then you have the cord, how well did they manufacture them? What materials?
Oh, and we must not forget the "baking" of the rubber, times and temperatures, expensive brands care, cheap brands don't care.

Then the pattern design.