[Purist]

Apart from the nearly pancake-like topography and massive, empty surroundings, in terms of the circuit itself, Termas de Rio Hondo has four corners in particular where I would be concerned about the line getting pinched: Turns 3, 7, 9, and 14.

That last one is the final corner, and will put paid to any last-second attempt to make a move before the line.

Turn 3 could well bottle things up heading onto the longest straight, destroying anyone's hard work at getting a good launch off of Turn 2.

Turn 7 is as it was before the changes, but it's slower than Turn 5, and there's less of a flat-out run to the new Turn 9 as there is from T5 to T7. It could be tough to make anything happen there with the larger spread due to the accordion effect. Also, T9's impact is amplified by the road sweeping back to the right at T10, and so you're going to be spreading out again, single-file, starting the run to Turn 13.

Finally, the bend at Turn 12 will mess with attempts to line up a move into Turn 13.

On the other hand, Potrero de los Funes defies much of the conventional wisdom on overtaking when you're expressly designing a circuit. The long-duration, high-speed corners and sinuous nature of the circuit allow for a multitude of racing lines, and what is "ideal" largely depends on what the driver is trying to do. Furthermore, none of the longer flat-out stretches is preceded by a very slow corner, so the opening of the physical gaps between cars heading onto the major "straights" is greatly reduced, and the trailing car can mount an overtaking attempt that much more quickly and readily.