2011 Limited 3.5L Ti-VCT V6 engine, bought new for wife's vehicle. Took delivery in late March or early April (can't remember) of 2011. Now has 178,000 miles. I have to say that other than the initial Sync issues (crap software), a few issues taken care of under warranty, and regular maintenance and wear items, the vehicle has been good to us. There have been a few annoyances with early failures (like the backup camera, the 2 HVAC motors in dash, Park/Shifter switch, armrest fake stitching, and 3rd row seat-backs detaching) but I was able to fix all these myself. A large fraction of the mileage is highway miles (fairly regular 500+ mile round trips). Just bought a new vehicle for my wife and I will continue to drive the Explorer for a while.