KIA was going to replace the OEM tires for me, as three of them were egg shaped
They were unable to balance with a road force balance.
I didn't want to run into the same problem with the same tires. Dealer worked it out
for me to get the Continentals and I paid $78.00 extra and they road forced the new
tires plus did a 4 wheel alignment. That worked out good for me.
I checked out tires on www.tirerack.com
Went with the Continentals not only for the price but so I don't have to put snow tires on.
Yes they are that good. We do get a lot of snow up in flagstaff, main highway out of
valley goes thru there.
Tires handle really well compared to the OEM tires. Good in turns and the stopping
is great even in rain. Only 50K warranty. I have 22,000 miles 0n them and don't even
look like they are worn. 10/32" tread to start. They are now 8/32". That's 12,000 miles
on the highway and other 10,000 city.
Best rating was for Michelin Pilot Sport A/S 3+ at a big price jump. These tires were
rated almost as good. Glad I went with them.
K900 is a quiet car any way but don't hear the tires at all. Only con I can see to the tires
they flat spot if left setting a couple of days. So for about the first mile or so you can
feel that, but then they are nice and smooth.
Check out ratings on tire rack. If Michelins had been same price I would have gone for
them just because I've had good luck with them in the past
Hope this helps, I couldn't wait to get rid of the OEM tires.