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I dislike the article immensely. If the "latest CFD" was applied in the design, then share the results of such engineering.
What does an Ioniq 5 get at 55 MPH normally? 3.6 miles per kWh seems like less than it would normally get. I'd expect something like 4 at that speed.
That isn't to dismiss the possibility that a trailer can improve efficiency, but like all "news" these days, they opted to tell me how to feel about it rather than describe the facts.
Of course people are going to get decent efficiency on the freeway by limiting themselves to 55 MPH. I don't know anyone that would limit themselves to that speed. The triple trailer big-rigs don't limit themselves to the legally mandated 55.
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