It very well could be a glitched text string, like the Seattle Short one you mentioned. But we don't know, and that's what makes it interesting. Stuff like this — be it an actual leak like some of the recent FM7/PCARS2 findings, or an uncertain one — also tends to draw big numbers from our readership, suggesting we're not alone in wanting to find out more about it.
Plus, as it's roughly the same time of the month that the previous two updates that featured cars landed, it's timely. While PD hasn't confirmed a February content update yet, there is still the 50/March target, and we're keeping that in mind.