 this is a follow-up to my 17000 mile review.after taking my car to the dealer in chesapeake,the service department found that my car came with m&s tires,which have a stiffer compound.can anyone else tell me if their car came with the same tire? khumho solus 225 kh16 m&s.kia corporate tells me they can't understand why these tires are on my car,and will be calling me this coming week to help find a solution.i will be greatful for anything they can do.my highway mileage still peeks between 29- 33.to anyone having problems with kia corporate,i find that quite hard to believe,as they have always been very helpful to me.