I think only 2 teams have overcome the U turn, Jet and Cord and Ken and Tina.
They were never u-turned, the only team that survived the u-turn is Maya & Amichai (Israel).
I wanted to mention it
. It's our national pride
I will state that the legs in TAR Israel were longer than the American version (I don't know about the actual time but they had doubled the number of tasks) and also the team that came last in this episode had to receive medical care during the leg and still came about a minute behind.
I think that in the American version overcoming a u-turn is almost impossible, especially if you are in the bottom of the pack to begin with, mostly because of the time spend on transportation between the tasks. The only case that a team was close to overcoming a u-turn in the American version was the sisters in TAR14, and that's only because Jaime & Cara really screwed up.