Agree on the comfort seats. A month ago I did a solo, 3000 mile tow from Philly to Seattle in 6 days, about 500-600 miles/day. I was totally comfortable all day long the entire trip, only stopped twice a day for gas/food then the hotel. I have 2012 X535d (38K miles), not one hiccup the whole trip, fantastic vehicle. The diesel is a beast coming over the mountains even with a trailer. I averaged about 15mpg towing a 1200LB trailer at 65-80mph (Montana).