Ann: June 2018 Quarterly Report and Appendix 4C, page-20

So the mexico web traffic has shot back up in December, but the quality is roughly back to where is was (bounce rate, etc). Makes me think that they started pumping money back into web advertising, resulting in more clicks, but perhaps not that many more genuine customers.
In my opinion Seminuevos and Soloautos are pretty close in terms of eyeballs on computer screens. I think these stats are just desktops though, mobile could be different.