Since you are clearing the rear tires now, the rear end swings to the left which is even more clearance than the tires had. The car follows the rear closely and the short wheel base on the car allows it to track a normal turn as if you were driving it. The rv is taking the car further out in the lane than if you were driving it. I watched a video the other day and they said something I will remember. If you are making a right hand turn and find you are blocking oncoming traffic, just sit it out and be patient until they go around. They won't see you again and just grumble about a bad driver for a few minutes. So take your time in a turn and make it a crawl until you are confident. I have a couple of cones for parking lot practice but that never gets you to the true dimension of an intersection.
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate