Factory tires are typically not same as the same exact tire model you would purchase as a replacement. Plenty of compromises built in to balance a good test drive, fuel economy, handling and ride......treadwear and durability takes a very distant last as the car manufacturer doesn't have to warranty them and the tire manufacturer does not warranty them either.
Some vehicles may end up with ok factory tires that last 40k but it seems the new normal on factory tires is more like 20k.
Some vehicles may end up with ok factory tires that last 40k but it seems the new normal on factory tires is more like 20k.