Turning radius is for the FEH is 18.3'.
http://www.cars.com/go/crp/research....Selection=true
That was a selling point for my wife who is used to a Saturn Ion.
The Highlander comes in at an 19.5'.
http://www.cars.com/go/crp/research....Selection=true
My opinion, the smaller size and tighter radius of the FEH make it better in parking lot maneuvers. The difference between it and the Ford Edge (closer in size to the Highlander, which I haven't driven) are more pronounced than the numbers would make it seem.