Yeah, that's pretty impressive, or insane, depending on how you look at it.

Fastest I've gone motor pacing is 55 behind a tractor trailer.

The 39 mph in the link I posted is no big deal.

The point the data illustrates which is somewhat striking, and why I posted it, is how big the aero advantage is. With no draft, 39.1mph under the conditions prevailing would have required around 1400 watts.

Instead my peak power was 939, which was mostly accelerating into the draft as the truck past me, and then it only took around 220 watts to hang out in the draft.