I just went on a 2500 mile road trip with our 06 Sonata LX. We went from
central Fl. to Philly. With stops in D.C. and Charleston S.C.. I averaged 27
mpg with a average speed of 68 mph. We drove about 80 mph on the interstate.
In South Carolina the outside temp was 101 and the A/C worked perfect, the
wife had a blanket in the back seat so she could sleep. (The windows are
tinted though. (Matt)) My only complaint is that the car was like a young
horse, we couldn't keep'er slowed down. Thank God for cruise control. My
wife does not like cruise control, I woke up to see 100 on the speedo, not
to mention the few 90s I saw between naps. She said she did not know she was
going that fast and she was trying to stay at 80. The 1800 or so wma's on
the 6 cd player kept us listening to "our" music the whole trip. I would
give the car a 9.5 on long trips. It would be a 10 if I could slow it down.

Rob