I've just bought an 09 Sportage XE. Only done 1400 miles yet but I like the car. When I picked it up it had a very slight misfire as you worked through the gears, but only in 2nd at 1500 revs wth gentle acceleration. I hoped that would wear off with some use. The problem got worse and has spread to all gears as you smoothly accelerate away or dawdle along in Traffic. I took it back to the Dealer under Warranty and although they have "experienced the problem" and admit there is one, the diagnostic computer comes up with no fault code. At the moment I have been sent back on to the road to see how the fault developes as, they can;tfix what the computer can't find! I have registered a complaint with Kia UK who, at this time, support their Dealer. Any advice please?