How does a manufacturer end up choosing a particular tire for a particular new car? Do they reach out to all major manufacturers and go with the best deal or the lowest bidder? Or, is it like R&T says in their review of some Nitto's recently



http://www.roadandtrack.com/tests/tires/nitto-motivo/



The tires that came on your new car were carefully chosen for it, or possibly even designed specifically for your particular model. An aftermarket tire may not provide the same performance, comfort, quietness or mileage, so you need to be careful. Nobody likes an ill-fitting pair of shoes.



I've never liked any of the stock tires that came new on my vehicles so I usually get something better quickly after buying them.

 

Unless you're talking about some high performance machine, your car's tires were indeed carefully selected: cheap enough to not lose money on, but good enough to keep customer complaints about sh*tty tires to a bare minimum.

 

Whatever is cheap

 

They will go super conservative with the tire, there are lots of factors to consider for even an econobox:



-all weather grip

-appropriate spring rate/dampening characteristics of the tire

-appropriate steering feedback

-decent treadwear rating

-cost

-replaceability



I'm sure there are lots of factors that we haven't thought of. But when you start looking at faster cars and pure racing machines, wow. There's a shitload that goes into it. The problem is that tires are a b*tch to model and we don't fully understand them.

 

They can care less about treadware almost all manufactures only offer a 12/12 warranty on the tires

My hd's tires lasted 22k miles

Camry tires wear out even faster

 

God dammit, he's probably right...

 

On my Accent the OEM tires were good. They lasted 40k before I replaced them. Went with the same tire but upsized to 15" and the next size wider My gas mileage went down.



The OEM Gen Coupe track tires were surprisingly good on the track.