 After 4 years of searching and researching options, I finally decided on the Hyundai.  I recently took it for a short vacation trip to Helen, Ga, which is in the mountains and I was certainly glad I bought the 6 cylinder. I never had a power issue climbing the medium grade hills in that area.  I got exceptional gas mileage; at least the advertised mileage but then I was not in a hurry to get there and did the posted speed limits and didn't gun it at lights or stop signs to get "of the line".  It was very quiet and comfortable. The XM radio was nice, however, it did cut out along the shaded tree roads.  The accelerator takes a little time to get use to.  It does seem to jump a little.