hello, my k900 wen you hit a bump just feels like a old car from the past. the steering well move to the sides when you get into a bad road.don"t have to bee that bad of the road is just not a pleasant feeling,is like the car want to move out of the lane.before buying a k900 just take the car to a different place and roads,not the one the dealer wants you to go.i went to the dealer with the complaint and they don't know ho to fixit.we test drove a new k900 and did the same,at that time i knew i had a problem in my hands.been taking with some customer center but nothing is going to be fix,they don't know with the problem is,they say that the way the car drive and absorb bumps, really kia.i have a sonata hybrid,i own a genesis 2015,and the k900.none of this car do with the k900 does wen going over a bump.at the dealer they gave me a loner,a cadenza,the cadenza do not have the problem wen absorbing a bump,they say is a different car then the k900,and I'm sure of that , the cadenza do not move the steering well wen you get a bump.so my conclusion is don't buy the k900 because the cadenza is a better car and more shipper the the k900 """"""really""""""".that"s just thrash not admitting that the k900 is a disaster wen come to pavement imperfections , koto all of my friends do not buy this car wat so ever,is a ripoff lexus want to be.