Jari-Matti Latvala leads Volkswagen team-mate Sebastien Ogier following the second day of the Rally Mexico in Guanajuato.
Ogier led after Thursday's three short stages but if he is to win a fourth successive Rally Mexico he will have to come from 32.1 seconds back after Finn Latvala took control on Friday.
While Ogier beat his team-mate in two of the day's three short stages, Latvala won all four longer tests to take a dominant position.
Latvala was 22 seconds quicker than the rest of the field the first time on El Chocolate, and took another 3.4sec from his French team-mate on Las Minas.
Ogier finished 10secs slower on the re-run of El Chocolate and limited his losses to just 0.5secs on Las Minas 2.
Latvala told wrc.com: "I'm happy with the gap tonight. I have to be a bit careful and patient because I don't need to take all the time in just one stage."
Ogier, who has won both the previous rallies this season, added: "I'm happy so far. This afternoon was very good. I've been pushing as much as I can and couldn't do better."
Hyundai driver Dani Sordo is in third, one minute 15.5secs behind Latvala, while Volkswagen II's Andreas Mikkelsen is fourth, a further 31.1secs back.
Thierry Neuville, who came into the day in second place, retired in the opening stage after his Hyundai's suspension broke.