Will the 10-year/100,000 mile warranty on my car still apply to the person l sell it to?

No it is only for your once it is sold the contract is no good.

No. The 10 year, 100K warranty is only for the original purchaser.

When the car is sold by the original owner, the new owner warranty will be 5 year (from original purchase date of the original owner), 60K warranty, including the powertrain.

Of course. But, buyer needs to register his/her identity in the owner book of your car. But, officially, you need to ask the dealer where you bought your car about this case and what next to do. Hope l could help.

if the buyer registers his name in the owner book he can enjoy the warranty if not he cannot

No.

The 5 year/60,000 mile applies to all owners.

The 10 year/100,000 does not. It applies to the first person to title the vehicle. Hyundai has this information so if you go to a Hyundai service department they will see it when they register your vin when writing the service.